Mealey's (June 18, 2015, 3:56 PM EDT) -- HARRISBURG, Pa. — A group of 405 health professionals on Aug. 19, 2014, sent a letter to Pennsylvania Gov. Tom Corbett and other state officials calling for reform at the Pennsylvania Department of Health (DOH) based on allegations that the employees of the DOH were instructed not to respond to health complaints regarding hydraulic fracturing....