1. Continuous versus cyclic use of oral contraceptives after surgery for symptomatic endometriosis: a prospective cohort study 
Nikos Vlahos, M.D., Athanasios Vlachos, M.D., Olga Triantafyllidou, M.D., Nikolaos Vitoratos, M.D., George Creatsas, M.D. 
Fertility and Sterility 
Volume 100, Issue 5, Pages (November 2013)
DOI: /j.fertnstert
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Kaplan-Meier analysis for the recurrence of endometriosis symptoms after surgery in the two groups. There were statistically significant differences in time to event only for (A) dysmenorrhea and (B) non-menstrual pelvic pain between the two groups. There were no differences in (C) time to endometrioma recurrence or (D) time to reappearance of dyspareunia between the two groups.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions