共 50 条
[46]
INFANT AND MATERNAL MORTALITY AMONG NEGROES
[J].
JOURNAL OF NEGRO EDUCATION,
1949, 18 (03)
:240-250
[48]
INFANT AND MATERNAL MORTALITY AMONG NEGROES
[J].
JOURNAL OF NEGRO EDUCATION,
1937, 6 (03)
:322-349
[49]
LOWER MATERNAL AND INFANT MORTALITY RATES
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1947, 135 (12)
:776-776