does anyone know what % of questions come from different specialties? either from personal experience or from what you've read about the exam. i'm not sure if i ever came across this info in any of the review books or the usmle's website or if i'm just blanking out... internal medicine - psych - neuro - ob/gyn - ortho- peds - surgery - subspecialties (ophtho/derm)? i'm trying to decide how much of my time to spend (waste) on studying each. thanks!