The master of the medical thriller returns with a chilling tale that explores the dark side of a sacred profession. Dr. Sarah Baldwin doesn't know why patients are hemorrhaging to death, but all the evidence points to the herbal prenatal vitamins she prescribes. As she fights to save their lives and her reputation, she becomes convinced that a more sinister force is at work | Natural Causes by MICHAEL PALMER, Mass Market Paperback | Indigo Chapters