Salvage laryngectomy and pharyngocutaneous fistulae after primary radiotherapy for head and neck cancer: a national survey from DAHANCA. - Grau,C.; Johansen,L.V.; Hansen,H.S.; Andersen,E.; Godballe,C.; Andersen,L.J.; Hald,J.; Moller,H.; Overgaard,M.; Bastholt,L.; Greisen,O.; Harbo,G.; et al. (Head Neck, 2003)