Fig. 5From: The effectiveness of different down-regulating protocols on in vitro fertilization-embryo transfer in endometriosis: a meta-analysisMeta-analysis on clinical pregnancy rate of endometriosis infertility patients at stage I-II(a) and stage III-IV(b) according to ASRM classification: the ultra-long protocol versus long protocol in RCTs. Clinical pregnancy rate of endometriosis infertility patients at stage I-II(c) and stage III-IV(d) according to ASRM classification in non-RCTs. Clinical pregnancy rate of endometriosis infertility patients at stage I-II(e) and stage III-IV(f) according to ASRM classification: the ultra-long protocol and the short protocol in non-RCTsBack to article page