Preservation of the larynx after resection of a carcinoma of the posterior wall of the hypopharynx: versatility of a free flap patch graft. - Nakatsuka,T.; Harii,K.; Ueda,K.; Ebihara,S.; Asai,M.; Hirano,K.; Yoshizumi,T.; Sugasawa,T. (Head Neck, 1997)