Hartwig Fernando Pires, Davies Neil Martin, Hemani Gibran, Davey Smith George
Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil.
Medical Research Council Integrative Epidemiology Unit at the University of Bristol.
Int J Epidemiol. 2016 Dec 1;45(6):1717-1726. doi: 10.1093/ije/dyx028.