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机译:A cumulative index of exposure to endogenous estrogens and breast cancer by molecular subtypes in northern Mexican women
Inst Nacl Salud Publ, Av Univ 655, Cuernavaca 62100, Morelos, Mexico;
Inst Politecn Nacl, Dept Toxicol, Ctr Invest & Estudios Avanzados, Av Inst Politecn Nacl 2508;