共 6 条
[1]
GLASS R, 1974, BRIT J PREV SOC MED, V28, P273
[3]
NIE NH, 1975, STATISTICAL PACKAGE, P410
[5]
EPIDEMIOLOGY OF HEPATOCELLULAR ADENOMA - ROLE OF ORAL-CONTRACEPTIVE USE
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1979, 242 (07)
:644-648