title: Duration of exposure, a neglected factor in chemoprevention trials.
authors.affiliation: School of Public Health, Louisiana State University Health Sciences Center, 1600 Canal Street, Suite 800, New Orleans, LA 70112, USA. efonth@lsuhsc.edu
authors.forename: Elizabeth T H
authors.initials: ET
authors.lastname: Fontham
authors.forename: Pelayo
authors.initials: P
authors.lastname: Correa
authors.forename: Robertino
authors.initials: R
authors.lastname: Mera
authors.forename: Luis Eduardo
authors.initials: LE
authors.lastname: Bravo
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Bravo
authors.forename: Maria Blanca
authors.initials: MB
authors.lastname: Piazuelo
authors.forename: M Constanza
authors.initials: MC
authors.lastname: Camargo
mesh_terms: D018890:Chemoprevention; D002986:Clinical Trials as Topic; D004781:Environmental Exposure; D005500:Follow-Up Studies; D006801:Humans; D009369:Neoplasms / Q000503:physiopathology / Q000517:prevention & control*; D015203:Reproducibility of Results; D013997:Time Factors