Dr. Semkiw is a Board Certified Occupational Medicine physician who practices at a major medical center in San Francisco, where he served as the Assistant Chief of Occupational Medicine. Walter embarked on reincarnation research in 1995, and he is the author of Return of the Revolutionaries: The Case for Reincarnation and Soul Groups Reunited, which was published in 2003. In addition, he is also author of Born Again: Reincarnation Cases Involving Evidence of Past Lives, with Xenoglossy Cases Researched by Ian Stevenson, MD, and Origin of the Soul and the Purpose of Reincarnation. His books have been published internationally and Walter has appeared on CNN and in Newsweek. His website is ReincarnationResearch.com.