BERGSMA DANIEL /red./ 192,580 The Third Conference on the Clinical delineation of Birth Defects. Baltimore 1972 The National Foundation -March of Dimes by The Williams and Wilkins Company 4° Birth DefectsjOriginal Article Ser.vol.7 no 8. P.12.Skin,hair and nails.Held at the Johns Hopkins Hospital,Baltimore,Md.,June 15-19,1970.Sponsored by the Johns Hopkins Medical Institutions and the National Foundation - March of Dimes.Hd. Daniel Bergsma.s.nib.8,357 ilustr.