RT Journal T1 REports of officers JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1929 FD June 1 VO 92 IS 22 SP 1839 OP 1864 DO 10.1001/jama.1929.02700480029013 UL http://dx.doi.org/10.1001/jama.1929.02700480029013 AB