RT Journal T1 DIrectory of pediatric societies JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1949 FD October 1 VO 78 IS 4 SP 625 OP 634 DO 10.1001/archpedi.1949.02030050622013 UL http://dx.doi.org/10.1001/archpedi.1949.02030050622013 AB