“…Multiple studies, including meta-analyses, have highlighted the role of HE4 as a potential complement to CA 125, especially in differentiating benign endometriotic and inflammatory lesions in younger women (Al Musalhi et al, 2016;Cao et al, 2018;Huang et al, 2018;Jacob et al, 2011;Jia et al, 2017;Kim et al, 2019;Kotowicz et al, 2015;Li et al, 2012;Lin et al, 2013;Lycke et al, 2018;Melo et al, 2018;Richards et al, 2015;Romagnolo et al, 2016;Sandri et al, 2013;Shin et al, 2020;Stiekema et al, 2014;Terlikowska et al, 2016;Van Gorp et al, 2012;Wang et al, 2014;Xu et al, 2016;Yanaranop et al, 2017;Yanaranop et al, 2018;Yu et al, 2012;Zhang et al, 2015). Additional tumour markers (as in the ROMA test) have failed to improve significantly the discrimination between benign and malignant masses compared with CA 125 alone (Chen et al, 2015;Choi et al, 2020;Cui et al, 2019;Huy et al, 2018;Kaijser, Van Gorp, et al, 2014;Kim et al, 2019;Kotowicz et al, 2015;Lycke et al, 2018;Melo et al, 2018;Piovano et al, 2017;Romagnolo et al, 2016;Sandri et al, 2013;…”