共 44 条
[1]
ARMITAGE P, 1971, STATISTICAL METHODS
[4]
BOLLAG W, 1979, CANCER CHEMOTH PHARM, V3, P207
[5]
Breslow NE, 1980, IARC SCI PUBLICATION, V32
[7]
EFFECTS OF ORAL CONTRACEPTIVES ON HUMAN PLASMA VITAMIN-A LEVELS
[J].
BMJ-BRITISH MEDICAL JOURNAL,
1971, 2 (5759)
:436-+
[9]
HAINES AP, 1982, LANCET, V1, P52