- Correspondence to Dr Luis Bahamondes, Department of Obstetrics and Gynaecology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Caixa Postal 6181, Campinas, SP 13084-971, Brazil;
- Received April 11, 2013
- Revised June 24, 2013
- Accepted July 30, 2013
- First published September 27, 2013.
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.