Just found an unread paperback copy of Drug Of Choice, written by Michael Crichton under one of his non-de-plumes John Lange, published by Hard Case Crimes. That's the same publisher that King used for The Colorado Kid and recently Joyland. Crichton wrote 8 adventure novels under this name and all are available from HCC. This was the only one that I hadn't been able to find and read previously. I really liked all of the other ones, they are a great way to spend a couple of hours. Crichton has said that they (the books) aren't meant for anything other than escapism. He wrote them while he was going to medical school.