A novel GNAS mutation in an infant boy with pseudohypoparathyroidism type Ia and normal serum calcium and phosphate levels - Reis, Mariana Tenorio Antunes; Cattani, Andreina; Mendonca, Berenice Bilharinho; Corrêa, Pedro Henrique Silveira; Martin, Regina Matsunaga (Arquivos Brasileiros de Endocrinologia e Metabologia, 2010)