At the end of most of my kids' checkups, their pediatrician sends in a physician's assistant with a tray bearing whatever vaccines might be due and a miniature Looney Toons bandage. The purpose of the Band-Aid is obvious, but until recently I never gave much thought to the role of the creepily chipper aides. I just assumed that they allowed the doctor to see enough patients to pay both her malpractice insurance... More >>>