Barry FriedbergBarry L. Friedberg, MD, is a volunteer assistant professor at the Keck School of Medicine, University of Southern California. Since 1992, he has practiced exclusively in the subspecialty of office-based anesthesia for elective cosmetic surgery. He founded the Society for Office Anesthesiologists (SOFA) in 1996 that he merged in 1998 with the Society for Office Based Anesthesia (SOBA), another non-profit, international society dedicated to improving patient safety through education. Dr Friedberg is the developer of propofol ketamine (PK) technique designed to maximize patient safety by minimizing the degree to which patients need to be medicated to create the illusion of general anesthesia, i.e. 'no hear, no feel, no recall.' Read More Read Less