Multiple endocrine neoplasia type 1 in Brazil: MEN1 founding mutation, clinical features, and bone mineral density profile - Lourenço, D M, Jr.; Toledo, R A; Mackowiak, I I; Coutinho, F L; Cavalcanti, M G; Correia-Deur, J E; Montenegro, F; Siqueira, S A; Margarido, L C; Machado, M C; Toledo, S P (Eur J Endocrinol, 2008)