Robeva, Ralitsa, Elena Marinova, Georgi Nikolaev, Silvia Andonova, Alexey Savov, Dobromir Tanev, Gueorgui Nikolov, and Rossitza Konakchieva. 2022. “Melatonin Receptor 1B Polymorphisms and Reproductive Failure – a Pilot Study”. Proceedings of the Bulgarian Academy of Sciences 75 (5). Sofia, Bulgaria:745-51. https://doi.org/10.7546/CRABS.2022.05.15.