Tomassetti C, Beukeleirs T, Conforti A, Debrock S, et al. The ultra-long study: a randomized controlled trial evaluating long-term GnRH
downregulation prior to ART in women with endometriosis. Hum Reprod 2021 Aug 9. pii: 6346771. doi: 10.1093.
PMID: 34370858