Recombinant hGH replacement therapy and the hypothalamus-pituitary-thyroid axis in children with GH deficiency: when should we be concerned about the occurrence of central hypothyroidism? - Giavoli,C.; Porretti,S.; Ferrante,E.; Cappiello,V.; Ronchi,C.L.; Travaglini,P.; Epaminonda,P.; Arosio,M.; Beck-Peccoz,P. (Clin Endocrinol, 2003)