Medicine
The classic practice of medicine! Don't forget AGE + BUN = Dose of Lasix! This is Per House of God, one of the greatest books ever written!Pediatrics
From Otitis Media to Well Child Care, to MRCP +GT,Trach Tube, etc... you're trained from birth to adolescence to take care of all those mommy calls and more!

Family Medicine
Take a little of the above two, add in some more procedures, and hint of the Pre-Peds stuff, and you have family med!

Emergency Medicine
The great ER! When in doubt, admit to medicine I always say! From MI to PE to Ingrown toenails! The ER sees it all!