Dr. Timothy D. Sheehan, M.D., is a retired US Army psychiatrist. He served in a wide variety of clinical and leadership positions during thirty-one years of active duty followed by over fourteen ye...lihat lebih banyakDr. Timothy D. Sheehan, M.D., is a retired US Army psychiatrist. He served in a wide variety of clinical and leadership positions during thirty-one years of active duty followed by over fourteen years as an army civilian psychiatrist. His interest in complex systems has contributed significantly to his understanding of brain function.lihat lebih sedikit