title: The Biological Photographic Association, its half century.
mesh_terms: D002568:Certification; D003142:Communication; D049673:History, 20th Century; D008488:Medical Illustration / Q000193:education / Q000266:history*; D010506:Periodicals as Topic / Q000266:history; D010781:Photography / Q000266:history*; D012042:Registries / Q000266:history; D012958:Societies, Scientific / Q000266:history* / Q000458:organization & administration; D014481:United States