Supernumerary parathyroid glands in hyperparathyroidism associated with multiple endocrine neoplasia type 1 - d'Alessandro, André Fernandes; Montenegro, Fábio Luiz de Menezes; Brandao, Lenine Garcia; Lourenço Junior, Delmar Muniz; Toledo, Sérgio de Almeida; Cordeiro, Anói Castro (Revista da Associação Médica Brasileira, 2012)