Stephanie Klein was once known as Moose. Not, of course, by choice - it was when she was in eighth grade, and had a .. ahem .. weight problem. She's long past that now, but during her pregnancy a couple of years ago, her doctor told her she needed to gain weight, and that advice brought forth a cascade of memories of a more painful time. Using writing as therapy, Stephanie Klein's book is called "Moose: A Memoir of Fat Camp." ...