Bero Lisa A, Binder Lucie
Department of Clinical Pharmacy, University of California San Francisco, 3333 California Street, Suite 420, San Francisco, CA 94118, USA.
J Clin Epidemiol. 2013 May;66(5):472-3. doi: 10.1016/j.jclinepi.2012.03.015. Epub 2012 Sep 5.