Impact of endometriosis and its staging on assisted reproduction outcome: systematic review and meta-analysis - Barbosa, M. A. P; Teixeira, D. M; Navarro, Paula Andrea de Albuquerque Salles; Ferriani, Rui Alberto; Nastri, C. O; Martins, Wellington de Paula (Ultrasound in Obstetrics and Gynecology, 2014)