title: PDA's volunteerism and service.
mesh_terms: D000346:Afghanistan; D001359:Aviation; D002648:Child; D019140:Dental Care for Children; D003740:Dental Clinics; D005582:Foundations; D006721:Honduras; D006801:Humans; D008952:Mobile Health Units; D010414:Pennsylvania; D012953:Societies, Dental; D014838:Volunteers