The following is a guest post by Raymond Barfield, author of The Book of Colors. If you would like to write a guest post on my blog, please send me an e-mail at contact@cecilesune.com. I graduated from medical school in 1993 and from residency in 1996. Work hour limits for medical students and residents were established in 1997 (the new rule was that students and residents can work no more than 80…