AU  - Kretchmer N
TI  - DEvelopmental biology
PT  - JOUR
DP  - 1969
TA  - American Journal of Diseases of Children
pages = {836-846},
VI  - 118
IP  - 6
AID  - 10.1001/archpedi.1969.02100040838006 [doi]
4100  - http://dx.doi.org/10.1001/archpedi.1969.02100040838006
SO  - American Journal of Diseases of Children December 1, 1969 118(6):836