RT Journal T1 DIrectory of pediatric societies JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1939 FD November 1 VO 58 IS 5 SP 1150 OP 1156 DO 10.1001/archpedi.1939.01990100232022 UL http://dx.doi.org/10.1001/archpedi.1939.01990100232022 AB