1. Consulting Specialist, Head Trauma Service. Rancho Los Amigos Hospital; Clinical Instructor, Orthopaedic Surgery, University of Southern California School of Medicine.
2. Chief of Anesthesiology, Rancho Los Amigos Hospital; Professor of Clinical Anesthesiology, University of Southern California School of Medicine.
3. Assistant Professor of Medicine, University of Southern California School of Medicine; Rheumatology Service, Rancho Los Amigos Hospital.