Hartwig Fernando Pires, Davies Neil Martin
Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
Medical Research Council Integrative Epidemiology Unit and.
Int J Epidemiol. 2016 Oct;45(5):1676-1678. doi: 10.1093/ije/dyw240. Epub 2016 Sep 20.