Start in Room 4, just beyond the reception area: A man is having blood drained from a bruised finger. Over in Room 1, a woman is being treated for eye trouble. Next door, in Room 2, a boy is having his throat swabbed. For more than eight hours a day, seven days a week, 52 weeks a year, an assortment of ailments is on display at the tidy medical clinic on Main Avenue here. But all of the patients have one thing in common: No one is being treated at a traditional doctor's office or emergency room.