After 27 years of practicing medicine in Robeson County, Carolyn McCormick has been victimized by an epidemic no pill or potion can cure. Rising malpractice insurance rates forced McCormick, 57, into early retirement Wednesday. And when she closed her Elm Street office, thousands of patients - she's not sure exactly how many - lost not only a trusted physician, but a friend as well. "So many of my patients have come in crying, in total disbelief that this is happening," said McCormick, whose office employed two people besides herself. "They tell me that they'll never find another doctor who listens...