title: Re: Physical activity and breast cancer risk in a cohort of young women.
authors.forename: L
authors.initials: L
authors.lastname: Bernstein
authors.forename: R K
authors.initials: RK
authors.lastname: Ross
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D015331:Cohort Studies; D015444:Exercise; D005260:Female; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D009726:Nurses; D012306:Risk; D013997:Time Factors; D014481:United States / Q000453:epidemiology