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John Christian Fox

Title(s)Clinical Professor, Emergency Medicine
Phone(714) 456-5239
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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    1. Lahham S, Shniter I, Thompson M, Le D, Chadha T, Mailhot T, Kang TL, Chiem A, Tseeng S, Fox JC. Point-of-Care Ultrasonography in the Diagnosis of Retinal Detachment, Vitreous Hemorrhage, and Vitreous Detachment in the Emergency Department. JAMA Netw Open. 2019 Apr 05; 2(4):e192162. PMID: 30977855.
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    2. Byrne C, Kahl N, Knight B, Lee M, Morley S, Lahham S, Bingisser R, Thompson M, Shniter I, Valdes V, Fox JC. A Prospective Evaluation of Point of Care Ultrasound Teaching in Switzerland. J Med Ultrasound. 2019 Apr-Jun; 27(2):92-96. PMID: 31316219.
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    3. Shah S, Tohmasi S, Frisch E, Anderson A, Almog R, Lahham S, Bingisser R, Fox JC. A comparison of simulation versus didactics for teaching ultrasound to Swiss medical students. World J Emerg Med. 2019; 10(3):169-176. PMID: 31171948.
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    4. Mazza G, Romo CM, Torres M, Duffens A, Vyas A, Moran K, Livingston J, Gonzales S, Lahham S, Shniter I, Thompson M, Fox JC. Assessment of clinical dehydration using point of care ultrasound for pediatric patients in rural Panama. World J Emerg Med. 2019; 10(1):46-50. PMID: 30598718.
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    5. Lahham S, Fox JC, Thompson M, Nakornchai T, Alruwaili B, Doman G, May Lee S, Shafi A, Shniter I, Valdes V, Zhang L. Tricuspid annular plane of systolic excursion to prognosticate acute pulmonary symptomatic embolism (TAPSEPAPSE study). J Ultrasound Med. 2019 Mar; 38(3):695-702. PMID: 30182486.
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    6. Vyas A, Moran K, Livingston J, Gonzales S, Torres M, Duffens A, Romo CM, Mazza G, Livingston B, Lahham S, Fox JC. Feasibility study of minimally trained medical students using the Rural Obstetrical Ultrasound Triage Exam (ROUTE) in rural Panama. World J Emerg Med. 2018; 9(3):216-222. PMID: 29796147.
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    7. Denny SP, Minteer WB, Fenning RTH, Aggarwal S, Lee DH, Raja SK, Raman KR, Farfel AO, Patel PA, Bernstein ME, Lahham S, Fox JC. Ultrasound curriculum taught by first-year medical students: A four-year experience in Tanzania. World J Emerg Med. 2018; 9(1):33-40. PMID: 29290893.
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    8. Lahham S, Becker BA, Gari A, Bunch S, Alvarado M, Anderson CL, Viquez E, Spann SC, Fox JC. Utility of common bile duct measurement in ED point of care ultrasound: A prospective study. Am J Emerg Med. 2018 Jun; 36(6):962-966. PMID: 29162442.
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    9. Fox JC, Lahham S, Maldonado G, Klaus S, Aish B, Sylwanowicz LV, Yanuck J, Wilson SP, Shieh M, Anderson CL, English C, Mayer R, Mohan UR. Reply. J Ultrasound Med. 2018 06; 37(6):1576. PMID: 28990214.
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    10. Lahham S, Baydoun J, Bailey J, Sandoval S, Wilson SP, Fox JC, Slattery DE. A Prospective Evaluation of Transverse Tracheal Sonography During Emergent Intubation by Emergency Medicine Resident Physicians. J Ultrasound Med. 2017 Oct; 36(10):2079-2085. PMID: 28503749.
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    11. Fox JC, Lahham S, Maldonado G, Klaus S, Aish B, Sylwanowicz LV, Yanuck J, Wilson SP, Shieh M, Anderson CL, English C, Mayer R, Mohan UR. Hypertrophic Cardiomyopathy in Youth Athletes: Successful Screening With Point-of-Care Ultrasound by Medical Students. J Ultrasound Med. 2017 Jun; 36(6):1109-1115. PMID: 28258593.
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    12. Yu AR, Hasjim B, Yu LE, Gabriel C, Anshus A, Lee JB, Louthan MJ, Kim EC, Lee K, Tse C, Keown T, Lahham S, Alvarado M, Bunch S, Gari A, Fox JC. Comparison of ultrasound-measured properties of the common carotid artery to tobacco smoke exposure in a cohort of Indonesian patients. World J Emerg Med. 2017; 8(3):177-183. PMID: 28680513.
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    13. Wilson SP, Assaf S, Lahham S, Subeh M, Chiem A, Anderson C, Shwe S, Nguyen R, Fox JC. Simplified point-of-care ultrasound protocol to confirm central venous catheter placement: A prospective study. World J Emerg Med. 2017; 8(1):25-28. PMID: 28123616.
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    14. Lee JB, Tse C, Keown T, Louthan M, Gabriel C, Anshus A, Hasjim B, Lee K, Kim E, Yu L, Yu A, Lahham S, Bunch S, Alvarado M, Gari A, Fox JC. Evaluation of a point of care ultrasound curriculum for Indonesian physicians taught by first-year medical students. World J Emerg Med. 2017; 8(4):281-286. PMID: 29123606.
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    15. Lahham S, Smith T, Baker J, Purdy A, Frumin E, Winners B, Wilson SP, Gari A, Fox JC. Procedural simulation: medical student preference and value of three task trainers for ultrasound guided regional anesthesia. World J Emerg Med. 2017; 8(4):287-291. PMID: 29123607.
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    16. Wilson SP, Mefford JM, Lahham S, Lotfipour S, Subeh M, Maldonado G, Spann S, Fox JC. Implementation of a 4-Year Point-of-Care Ultrasound Curriculum in a Liaison Committee on Medical Education-Accredited US Medical School. J Ultrasound Med. 2017 02; 36(2):321-325. PMID: 27943456.
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    17. Boysen Osborn M, Mattson J, Yanuck J, Anderson C, Tekian A, Fox JC, Harris IB. Ranking Practice Variability in the Medical Student Performance Evaluation: So Bad, It's "Good". Acad Med. 2016 11; 91(11):1540-1545. PMID: 27075499.
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    18. Lahham S, Tsai L, Wilson SP, Assaf S, Navarro R, Banimahd F, Subeh M, Barton ED, Barbera A, Fox JC. Thrombosis of Inferior Vena Cava Diagnosed Using Point-of-Care Ultrasound After Pediatric Near-Syncope. J Emerg Med. 2016 Oct; 51(4):e89-e91. PMID: 27545854.
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    19. Lahham S, Wilson SP, Subeh M, Butterfield M, Albakri AR, Bashir R, Fox JC. Ultrasound-guided central venous access: which probe is preferred for viewing the subclavian vein using a supraclavicular approach? Am J Emerg Med. 2016 Sep; 34(9):1761-4. PMID: 27324852.
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    20. Lahham S, Becker B, Chiem A, Joseph LM, Anderson CL, Wilson SP, Subeh M, Trinh A, Viquez E, Fox JC. Pilot Study to Determine Accuracy of Posterior Approach Ultrasound for Shoulder Dislocation by Novice Sonographers. West J Emerg Med. 2016 May; 17(3):377-82. PMID: 27330675.
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    21. Silva JP, Plescia T, Molina N, Tonelli AC, Langdorf M, Fox JC. Randomized study of effectiveness of computerized ultrasound simulators for an introductory course for residents in Brazil. J Educ Eval Health Prof. 2016; 13:16. PMID: 27044782.
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    22. Jacobsen B, Lahham S, Lahham S, Patel A, Spann S, Fox JC. Retrospective Review of Ocular Point-of-Care Ultrasound for Detection of Retinal Detachment. West J Emerg Med. 2016 Mar; 17(2):196-200. PMID: 26973752.
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    23. Dinh VA, Fu JY, Lu S, Chiem A, Fox JC, Blaivas M. Integration of Ultrasound in Medical Education at United States Medical Schools: A National Survey of Directors' Experiences. J Ultrasound Med. 2016 Feb; 35(2):413-9. PMID: 26782166.
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    24. Chiem AT, Soucy Z, Dinh VA, Chilstrom M, Gharahbaghian L, Shah V, Medak A, Nagdev A, Jang T, Stark E, Hussain A, Lobo V, Pera A, Fox JC. Integration of Ultrasound in Undergraduate Medical Education at the California Medical Schools: A Discussion of Common Challenges and Strategies From the UMeCali Experience. J Ultrasound Med. 2016 Feb; 35(2):221-33. PMID: 26764278.
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    25. Lahham S, Schmalbach P, Wilson SP, Ludeman L, Subeh M, Chao J, Albadawi N, Mohammadi N, Fox JC. Prospective evaluation of point-of-care ultrasound for pre-procedure identification of landmarks versus traditional palpation for lumbar puncture. World J Emerg Med. 2016; 7(3):173-7. PMID: 27547275.
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    26. Wilson SP, Connolly K, Lahham S, Subeh M, Fischetti C, Chiem A, Aspen A, Anderson C, Fox JC. Point-of-care ultrasound versus radiology department pelvic ultrasound on emergency department length of stay. World J Emerg Med. 2016; 7(3):178-82. PMID: 27547276.
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    27. Lane N, Lahham S, Joseph L, Bahner DP, Fox JC. Ultrasound in medical education: listening to the echoes of the past to shape a vision for the future. Eur J Trauma Emerg Surg. 2015 Oct; 41(5):461-7. PMID: 26038053.
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    28. Turner EE, Fox JC, Rosen M, Allen A, Rosen S, Anderson C. Implementation and assessment of a curriculum for bedside ultrasound training. J Ultrasound Med. 2015 May; 34(5):823-8. PMID: 25911715.
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    29. Ramsingh D, Fox JC, Wilson WC. Perioperative Point-of-Care Ultrasonography: An Emerging Technology to Be Embraced by Anesthesiologists. Anesth Analg. 2015 May; 120(5):990-2. PMID: 25899264.
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    30. Zha Y, Zhou M, Hari A, Jacobsen B, Mitragotri N, Rivas B, Ventura OG, Boughton J, Fox JC. Ultrasound diagnosis of malaria: examination of the spleen, liver, and optic nerve sheath diameter. World J Emerg Med. 2015; 6(1):10-5. PMID: 25802560.
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    31. Miner B, Purdy A, Curtis L, Simonson K, Shumway C, Baker J, Vaughan J, Percival K, Sanchez O, Lahham S, Joseph L, Fox JC. Feasibility study of first-year medical students identifying cardiac anatomy using ultrasound in rural Panama. World J Emerg Med. 2015; 6(3):191-5. PMID: 26401179.
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    32. Connolly K, Beier L, Langdorf MI, Anderson CL, Fox JC. Ultrafest: a novel approach to ultrasound in medical education leads to improvement in written and clinical examinations. West J Emerg Med. 2015 Jan; 16(1):143-8. PMID: 25671024.
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    33. Fox JC, Schlang JR, Maldonado G, Lotfipour S, Clayman RV. Proactive medicine: the "UCI 30," an ultrasound-based clinical initiative from the University of California, Irvine. Acad Med. 2014 Jul; 89(7):984-9. PMID: 24826849.
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    34. Frumin E, Schlang J, Wiechmann W, Hata S, Rosen S, Anderson C, Pare L, Rosen M, Fox JC. Prospective analysis of single operator sonographic optic nerve sheath diameter measurement for diagnosis of elevated intracranial pressure. West J Emerg Med. 2014 Mar; 15(2):217-20. PMID: 24672615.
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    35. Farukhi SN, Fox JC. The role of ultrasound in the management and diagnosis of infectious mononucleosis. Crit Ultrasound J. 2014 Feb 28; 6(1):4. PMID: 24580968.
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    36. Steller J, Russell B, Lotfipour S, Maldonado G, Siepel T, Jakle H, Hata S, Chiem A, Fox JC. USEFUL: Ultrasound Exam for Underlying Lesions incorporated into physical exam. West J Emerg Med. 2014 May; 15(3):260-6. PMID: 24868302.
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    37. Fox JC, Marino H, Fischetti C. Differential diagnosis of cardiovascular symptoms: setting the expectations for the ultrasound examination and medical education. Glob Heart. 2013 Dec; 8(4):289-92. PMID: 25690628.
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    38. Cotter JA, Yu A, Kreitenberg A, Haddad FH, Baker MJ, Fox JC, Adams GR. Suction-modified needle biopsy technique for the human soleus muscle. Aviat Space Environ Med. 2013 Oct; 84(10):1066-73. PMID: 24261060.
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    39. Lotfipour S, Sayegh R, Chakravarthy B, Hoonpongsimanont W, Anderson CL, Fox JC, Vaca FE. Fatality and injury severity of older adult motor vehicle collisions in orange county, california, 1998-2007. West J Emerg Med. 2013 Feb; 14(1):63-8. PMID: 23451291.
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    40. Fox JC, Chiem AT, Rooney KP, Maldonaldo G. Web-based lectures, peer instruction and ultrasound-integrated medical education. Med Educ. 2012 Nov; 46(11):1109-10. PMID: 23078697.
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    41. Lotfipour S, Cisneros V, Chakravarthy B, Barrios C, Anderson CL, Fox JC, Roumani S, Hoonpongsimanont W, Vaca FE. Assessment of readiness to change and relationship to AUDIT score in a trauma population utilizing computerized alcohol screening and brief intervention. Subst Abus. 2012; 33(4):378-86. PMID: 22989282.
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    42. Fox JC, Richardson AG, Lopez S, Solley M, Lotfipour S. Implications and approach to incidental findings in live ultrasound models. West J Emerg Med. 2011 Nov; 12(4):472-4. PMID: 22224140.
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    43. Lahham S, Tu K, Ni M, Tran V, Lotfipour S, Anderson CL, Fox JC. Comparison of pressures applied by digital tourniquets in the emergency department. West J Emerg Med. 2011 May; 12(2):242-9. PMID: 21691536.
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    44. Fox JC, Boysen M, Gharahbaghian L, Cusick S, Ahmed SS, Anderson CL, Lekawa M, Langdorf MI. Test characteristics of focused assessment of sonography for trauma for clinically significant abdominal free fluid in pediatric blunt abdominal trauma. Acad Emerg Med. 2011 May; 18(5):477-82. PMID: 21569167.
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    45. Fox JC, Bertoglio KC. Emergency Physician Performed Ultrasound for DVT Evaluation. Thrombosis. 2011; 2011:938709. PMID: 22084671.
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    46. Lotfipour S, Patel BH, Grotsky TA, Anderson CL, Carr EM, Ahmed SS, Chakravarthy B, Fox JC, Vaca FE. Comparison of the visual function index to the Snellen Visual Acuity Test in predicting older adult self-restricted driving. Traffic Inj Prev. 2010 Oct; 11(5):503-7. PMID: 20872306.
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    47. Summers SM, Scruggs W, Menchine MD, Lahham S, Anderson C, Amr O, Lotfipour S, Cusick SS, Fox JC. A prospective evaluation of emergency department bedside ultrasonography for the detection of acute cholecystitis. Ann Emerg Med. 2010 Aug; 56(2):114-22. PMID: 20138397.
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    48. Ibrahim D, Patel NP, Gupta M, Fox JC, Lotfipour S. Ileocecal intussusception in the adult population: case series of two patients. West J Emerg Med. 2010 May; 11(2):197-200. PMID: 20823972.
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    49. Fox JC, Anderson CL, Ahmed SS, McDonough J, Wiechmann W, Waters M, Barajas G, Lotfipour S. Effect of a medical student emergency ultrasound clerkship on number of emergency department ultrasounds. West J Emerg Med. 2010 Feb; 11(1):31-4. PMID: 20411072.
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    50. Summers S, Habicht M, Fox JC, Niknafs N. Adult colo-colonic intussusception incidentally detected by emergency bedside gallbladder sonography. J Emerg Med. 2011 Dec; 41(6):668-71. PMID: 19766435.
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    51. Fox JC, Irwin Z. Emergency and critical care imaging. Emerg Med Clin North Am. 2008 Aug; 26(3):787-812, ix-x. PMID: 18655945.
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    52. Fox JC, Solley M, Anderson CL, Zlidenny A, Lahham S, Maasumi K. Prospective evaluation of emergency physician performed bedside ultrasound to detect acute appendicitis. Eur J Emerg Med. 2008 Apr; 15(2):80-5. PMID: 18446069.
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    53. Scruggs W, Fox JC, Potts B, Zlidenny A, McDonough J, McDonough J, Anderson CL, Larson J, Barajas G, Langdorf MI. Accuracy of ED Bedside Ultrasound for Identification of gallstones: retrospective analysis of 575 studies. West J Emerg Med. 2008 Jan; 9(1):1-5. PMID: 19561694.
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    54. Vaca F, Mai D, Anderson CL, Fox JC, Ferrarella N. Associated economic impact of skatepark-related injuries in Southern California. Clin Med Res. 2007 Oct; 5(3):149-54. PMID: 18056022.
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    55. Fox JC, Cusick S, Scruggs W, Henson TW, Anderson CL, Barajas G, Zlidenny A, McDonough J, Langdorf MI. Educational assessment of medical student rotation in emergency ultrasound. West J Emerg Med. 2007 Aug; 8(3):84-7. PMID: 19561689.
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    56. Gharahbaghian L, Brosnan DP, Fox JC, Stratton SJ, Langdorf MI. New onset thyrotoxicosis presenting as vomiting, abdominal pain and transaminitis in the emergency department. West J Emerg Med. 2007 Aug; 8(3):97-100. PMID: 19561693.
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    57. Fox JC, Hunt MJ, Zlidenny AM, Oshita MH, Barajas G, Langdorf MI. Retrospective analysis of emergency department ultrasound for acute appendicitis. Cal J Emerg Med. 2007 May; 8(2):41-5. PMID: 20440399.
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    58. Hodgson DT, Lotfipour S, Fox JC. Vaginal bleeding before 20 weeks gestation due to placental abruption leading to disseminated intravascular coagulation and fetal loss after appearing to satisfy criteria for routine threatened abortion: a case report and brief review of the literature. J Emerg Med. 2007 May; 32(4):387-92. PMID: 17499692.
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    59. Squire BT, Fox JC, Anderson C. ABSCESS: applied bedside sonography for convenient evaluation of superficial soft tissue infections. Acad Emerg Med. 2005 Jul; 12(7):601-6. PMID: 15995090.
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    60. Vaca F, Fox JC, Mai D, Anderson CL, Kwon KT, Wiechmann WF. Skatepark-related injuries in a southern California skatepark and their associated short-term disability and healthcare utilization. Clin J Sport Med. 2005 May; 15(3):142-7. PMID: 15867556.
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    61. Lee FM, Fox JC. Diagnosis of hip effusion with bedside ultrasound in the emergency department. Cal J Emerg Med. 2003 Jul; 4(3):51-4. PMID: 20847845.
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    62. Langdorf MI, Rudkin SE, Dellota K, Fox JC, Munden S. Decision rule and utility of routine urine toxicology screening of trauma patients. Eur J Emerg Med. 2002 Jun; 9(2):115-21. PMID: 12131632.
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    63. Langdorf MI, Fox JC, Marwah RS, Montague BJ, Hart MM. Physician versus computer knowledge of potential drug interactions in the emergency department. Acad Emerg Med. 2000 Nov; 7(11):1321-9. PMID: 11073486.
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