RT Journal T1 DIrectory of pediatric societies JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1939 FD September 1 VO 58 IS 3 SP 684 OP 690 DO 10.1001/archpedi.1939.01990090238018 UL http://dx.doi.org/10.1001/archpedi.1939.01990090238018 AB