RET mutation profile and variable clinical manifestation in a family with multiple endocrine neoplasia type 2 A and Hirschsprung's disease. - Pasini,B.; Rossi,R.; Ambrosio Zatelli,M.RMC.; Gullo,M.; Gobbo,M.; Collini,P.; Aiello,A.; Pansini,G.; Trasforini,G.; Uberti,E.C. (Surgery, 2002)