A Diagnosis With a Dose of Religion By JOHN SCHWARTZ and DENISE GRADY Published: March 24, 2005 William P. Cheshire Jr., the Florida doctor cited by Gov. Jeb Bush yesterday in his announcement that he would intervene again in the case of Terri Schiavo, is a neurologist and bioethicist whose life and work have been guided by his religious beliefs. Dr. Cheshire directs a laboratory at the Mayo Clinic branch in Jacksonville dealing with unconscious reflexes like digestion, and he is director of biotech ethics at the Center for Bioethics and Human Dignity, a nonprofit group founded by "more than...