1 Setor de Algia Pélvica e Endometriose, Departamento de Ginecologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
2 Oxford Endometriosis CaRe Centre, Nuffield Department of Women's and Reproductive Health, Medical Science Division, University of Oxford, Oxford, United Kingdom.
3 Pain in Women, Nuffield Department of Women's and Reproductive Health, Medical Science Division, University of Oxford, Oxford, United Kingdom.