ŚLIZIEŃ KUCZAPSKA, E.; SMYCZYŃSKA, J.; RABIJEWSKI, M. Selected issues of reproductive health formation disorders in girls. Is it worth to include cycle observation in medical practice? Part I. Natural course of puberty in girls – borders of physiology and pathology. Kwartalnik Naukowy Fides et Ratio, v. 43, n. 3, p. 285–302, 29 Oct.2020.