BOSTON—Area gastroenterologist John Kleemer said "Mylanta" this week, according to patient Stanley Thurlong, 49, a longtime heartburn and painful acid indigestion sufferer. "My doctor said Mylanta," Thurlong told reporters Monday at a press conference at the Val-U-Sav Pharmacy where he purchased the non-prescription medication. Liz Nathan, Kleemer's secretary, confirmed the report. "Dr. Kleemer said 'Mylanta,'" she said.