BARTOSIK, Magdalena; BARTOSIK-ZIELIŃSKA, Diana; BLICHARZ, Monika; BLICHARZ, Agnieszka; SWATKO, Tomasz. Primary amenorrhea - where is the issue? A systematic review of literature in search of an answer. Journal of Education, Health and Sport, [S. l.], v. 15, n. 1, p. 56–62, 2023. DOI: 10.12775/JEHS.2023.15.01.007. Disponível em: https://apcz.umk.pl/JEHS/article/view/42793. Acesso em: 6 feb. 2026.