APA

Williamson D., Missiaglia E., Chisholm J. & Shipley J. (20130304). Inconvenience of convenience cohorts--letter. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Chicago

Williamson Daniel, Missiaglia Edoardo, Chisholm Julia and Shipley Janet. 20130304. Inconvenience of convenience cohorts--letter. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Harvard

Williamson D., Missiaglia E., Chisholm J. and Shipley J. (20130304). Inconvenience of convenience cohorts--letter. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

MLA

Williamson Daniel, Missiaglia Edoardo, Chisholm Julia and Shipley Janet. Inconvenience of convenience cohorts--letter. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 20130304.