The medical and Lakelands communities mourn the loss of Terry Marshall, M.D. Dr. Marshall was a neonatologist and director of neonatology at Self Regional Healthcare. Our organization has lost a great physician and man who devoted his life to taking care of our tiniest patients. In his 32 years here at Self Regional, he cared for more than 7,000 babies who were in the neonatal intensive care unit and thousands more healthy babies.