Main Line Health Laboratories provided clinical laboratory testing for the patients of Main Line Health's hospitals (Bryn Mawr, lankenau, Paoli, riddle, and Bryn Mawr rehabilitation hospitals)at nine different locations our mission is to be the preeminent clinical laboratory provider in the Delaware Valley, known for quality service and customer satisfaction effective 11 59pm on June 30, 2011, Main Line Health Laboratories transferred substantially all assets to Main Line hospitals