APA

Fontham E. T. H., Correa P., Mera R., Bravo L. E., Bravo J. C., Piazuelo M. B. & Camargo M. C. (20060110). Duration of exposure, a neglected factor in chemoprevention trials. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Chicago

Fontham Elizabeth T H, Correa Pelayo, Mera Robertino, Bravo Luis Eduardo, Bravo Juan Carlos, Piazuelo Maria Blanca and Camargo M Constanza. 20060110. Duration of exposure, a neglected factor in chemoprevention trials. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Harvard

Fontham E. T. H., Correa P., Mera R., Bravo L. E., Bravo J. C., Piazuelo M. B. and Camargo M. C. (20060110). Duration of exposure, a neglected factor in chemoprevention trials. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

MLA

Fontham Elizabeth T H, Correa Pelayo, Mera Robertino, Bravo Luis Eduardo, Bravo Juan Carlos, Piazuelo Maria Blanca and Camargo M Constanza. Duration of exposure, a neglected factor in chemoprevention trials. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 20060110.