共 60 条
[1]
ADAIR F, AM ASS OBSTETRICS GY, V41, P236
[3]
BODENSTAB WH, 1898, TEXAS COURIER RECORD, V16, P434
[4]
BUMPASS L, 1970, SCIENCE, V169
[6]
CUTRIGHT P, 1972, FAMILY PLANNING PERS, V4
[7]
CUTRIGHT P, 1972, SOCIAL DEMOGRAPHIC A, V1
[8]
DAVIDSON S, 1969, HUMAN NUTRITION DIET, P456
[9]
Farley R., 1970, GROWTH BLACK POPULAT
[10]
FORD HW, 1927, AM J HYGIENE, V7, P100