Not very poignant given that the OP had a specific question that was answered by others... but I have some books sitting in my Kindle queue written by the consulting internist who helped them break down a lot of the medical cases in the show (Lisa Sanders, MD)... I first got into trying to find the "real" cases they reference from being into Grey's for years, and realizing some stuff I read popped up in the storylines when they need a weird rare disease.