title: Obituary. Richard Alfred O'Brien, C.B.E, M.D., D.P.H., M.C.P.A.
mesh_terms: D001315:Australia; D004165:Diphtheria / Q000276:immunology; D004166:Diphtheria Antitoxin / Q000266:history; D049673:History, 20th Century
chemical_list: D004166:Diphtheria Antitoxin