For the model diagnosing all menstrual endometriosis (CA-125, VEGF, Annexin V) the C-index was 74.7% (previously reported by Vodolazkaia et al. as 69%/80% in train/test set), while for the ultrasound-negative models (CA-125, VEGF, Annexin V, and glycodelin or ICAM), the C-index was 76.0% and 70.6%, respectively (previously reported by Vodolazkaia et al. as 81/78% and 79/78%, respectively). The gene discussed is ANXA5; the disease is endometriosis.