Mutational analysis of Portuguese families with multiple endocrine neoplasia type 1 reveals large germline deletions. by Cavaco, B, Domingues, R, Bacelar, M, Cardoso, H, Barros, L, Gomes, L, Ruas, M, Agapito, A, Garrão, A, Pannett, A, Silva, J, Sobrinho, L, Thakker, R, Leite, V