- Correspondence to André Salem Szklo, Division of Epidemiology, Brazilian National Cancer Institute (INCA), Rua Marquês de Pombal 125/7° andar, Centro, Rio de Janeiro 20230-240, Brazil;
- Received May 13, 2015
- Accepted December 29, 2015
- First published January 21, 2016.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.