November 2, 2015 4:55 pm The Importance of Selecting a Primary Care Physician Dr. David Longworth, Chair of Lahey Health Primary Care, explains the value of high quality, affordable and empathetic health care US & World Videos 1:11 What is ‘factitious disorder imposed on another,' or FDIA? 0:34 FDA expands eye drop recall to include 27 additional products 1:15 What is dengue fever? 1:20 What to know about Legionnaires' disease 1:26 What you need to know about leprosy