Some Jehovah's Witnesses with leukemia turn to an atheist Cedars-Sinai doctor who respects their refusal to accept blood transfusions. Christina Blouvan-Cervantes had been battling aggressive leukemia when her blood count plummeted and she landed in the emergency room in Fresno. Her doctors told her a blood transfusion was her only hope. But her faith wouldn't allow her to receive one.