1. Ethinylestradiol 20 μg/drospirenone 3 mg in a flexible extended regimen for the management of endometriosis-associated pelvic pain: a randomized controlled trial 
Tasuku Harada, M.D., Saori Kosaka, M.D., Joerg Elliesen, M.D., Masanobu Yasuda, Makoto Ito, Mikio Momoeda, M.D. 
Fertility and Sterility 
Volume 108, Issue 5, Pages (November 2017)
DOI: /j.fertnstert
Copyright © 2017 The Authors Terms and Conditions

2. Figure 1
Patient flow during the double-blind treatment phase (week 24) and the open-label extension phase (week 52) of the study (full analysis set [FAS]).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2017 The Authors Terms and Conditions

3. Figure 2
(A) Reduction from baseline to week 24 in pain measures associated with endometriosis; (B) gynecologic endpoints.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2017 The Authors Terms and Conditions