TY - GEN AU - Hennekens,C H AU - Buring,J E TI - Contributions of observational evidence to prevention research SN - 0091-7435 PY - 1995///0309 KW - Epidemiologic Methods KW - Humans KW - Preventive Medicine KW - Research KW - Risk KW - Risk Factors N1 - Publication Type: Journal Article UR - https://doi.org/10.1006/pmed.1994.1092 ER -