1. Universidade Federal de São Paulo; Brazilian Cochrane Centre; R. Pedro de Toledo, 598 São Paulo São Paulo Brazil
2. Warneford Hospital; Centre for Suicide Research, University Department of Psychiatry; Oxford UK OX3 7JX
3. National Collaborating Centre for Women's and Children's Health; 4th Floor, King's Court 2-16 Goodge Street London UK W1T 2QA