RT Journal T1 DIrectory of pediatric societies JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1939 FD February 1 VO 57 IS 2 SP 482 OP 488 DO 10.1001/archpedi.1939.01990020240024 UL http://dx.doi.org/10.1001/archpedi.1939.01990020240024 AB