共 40 条
[1]
AABY P, 1981, LANCET, V2, P1231
[2]
ARMITAGE P, 1971, STATISTICAL METHODS
[3]
STUDIES OF BREAST-FEEDING AND INFECTIONS - HOW GOOD IS THE EVIDENCE
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1986, 256 (07)
:887-892
[4]
BOLLAG U, 1981, LANCET, V2, P697
[7]
BRIEND A, 1987, LANCET, V2, P725
[10]
BURGESS H. J. L., 1969, Journal of Tropical Pediatrics, V15, P189