Donnez, J., Dolmans, M.-M., Pellicer, A., Diaz-Garcia, C., Ernst, E., Macklon, K. T., & Andersen, C. Y. (2015). Fertility preservation for age-related fertility decline. The Lancet, 385(9967), 506-507. https://doi.org/10.1016/S0140-6736(15)60198-2 (Original work published 2015)