AU - SONTAG LW, SNELL D, ANDERSON M TI - RAte of appearance of ossification centers from birth to the age of five years PT - JOUR DP - 1939 TA - American Journal of Diseases of Children pages = {949-956}, VI - 58 IP - 5 AID - 10.1001/archpedi.1939.01990100031004 [doi] 4100 - http://dx.doi.org/10.1001/archpedi.1939.01990100031004 SO - American Journal of Diseases of Children November 1, 1939 58(5):949