共 8 条
- [3] Koepsell T.D., 2003, Epidemiologic methods: studying the occurrence of illness
- [4] Escalation of drug use in early-onset cannabis users vs co-twin controls [J]. JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 2003, 289 (04): : 427 - 433
- [5] MANTEL N, 1959, J NATL CANCER I, V22, P719
- [7] NURMINEN M, 1981, BIOMETRIKA, V68, P525, DOI 10.1093/biomet/68.2.525
- [8] Rothman K. J., 1998, MODERN EPIDEMIOLOGY