RT Journal T1 DIrectory of pediatric societies JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1939 FD May 1 VO 57 IS 5 SP 1216 OP 1222 DO 10.1001/archpedi.1939.01990050222021 UL http://dx.doi.org/10.1001/archpedi.1939.01990050222021 AB