NEIDEL, Jasper; ZANDER, Detlef; HACKENBROCH, Matthias H. Low plasma levels of Insulin-like Growth Factor I in Perthes’ disease A controlled study of 59 consecutive children. Acta Orthopaedica, [S. l.], v. 63, n. 4, p. 393–398, 1992. DOI: 10.3109/17453679209154752. Disponível em: https://actaorthop.org/actao/article/view/22021. Acesso em: 2 may. 2026.