Dr. O John Ma

professsor and Chair of Emergency Medicine in United States

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Between 2007 and 2019, Dr. O John Ma was Professor and Chair of Emergency Medicine at Oregon Health & Science University. Between 2011 to 2013, Dr. O John Ma served as President of the Professional Staff at OHSU Healthcare. The CEO and Co-Founder of Innovative, Disruptive, Emerging Applications in Emergency Medicine was Dr. O John Ma (IDEA-EM).

Dr. O John Ma has edited 20 reference textbooks, including Ma and Mateer's Emergency Ultrasound and Tinitnalli's Emergency Medicine, which have been published in over ten languages. Dr. O John Ma's study has mostly focused on the use of ultrasound in the diagnosis of injuries in trauma patients. He has served on the American Board of Emergency Medicine and the Society for Academic Emergency Medicine Boards of Directors. He has received four Teacher of the Year awards, as well as the SAEM Excellence in Ultrasound Education Award in 2005.