TY - GEN AU - Riboli,E AU - Kaaks,R TI - Invited commentary: the challenge of multi-center cohort studies in the search for diet and cancer links SN - 0002-9262 PY - 2000///0313 KW - Cohort Studies KW - Diet KW - Diet Surveys KW - Epidemiologic Methods KW - Ethnicity KW - statistics & numerical data KW - Humans KW - Multicenter Studies as Topic KW - Neoplasms KW - ethnology KW - Prospective Studies KW - United States KW - epidemiology N1 - Publication Type: Journal Article; Comment UR - https://doi.org/10.1093/oxfordjournals.aje.a010215 ER -