Effect of transdermal estradiol therapy on bone mineral density of amenorrheic female athletes - Nose-Ogura, S.; Yoshino, O.; Kanatani, M.; Dohi, M.; Tabei, K.; Harada, M.; Hiraike, O.; Kawahara, T.; Osuga, Y.; Fujii, T. (Scandinavian Journal of Medicine & Science in Sports, 2020)