GNRH1 and endometriosis: In 2010, Sallam et al. published a study in the Cochrane Database, which combined the results of three prospective clinical studies and concluded that 3–6 months of pre-treatment with a GnRH agonist could increase the IVF pregnancy rate of patients with endometriosis by 4-fold and increase the IVF live birth rate of patients with endometriosis by 9-fold (43).