AU  - SOUTHWICK WE
TI  - TIme and stage in development at which factors operate to produce mongolism
PT  - JOUR
DP  - 1939
TA  - American Journal of Diseases of Children
pages = {68-89},
VI  - 57
IP  - 1
AID  - 10.1001/archpedi.1939.01990010077006 [doi]
4100  - http://dx.doi.org/10.1001/archpedi.1939.01990010077006
SO  - American Journal of Diseases of Children January 1, 1939 57(1):68