The effects of Phoniatric PREhabilitation in Head and Neck Cancer patients on Aspiration and Preservation of Swallowing (PREHAPS): study protocol of a monocentric prospective rando... oleh Julian Kuenzel, Stephan Duerr, Sarah Vester, Florian Zeman, Gunnar Huppertz, Michael Koller, Gerda Pfleger, Annika Woertgen, Hazem Salloum, Monika Klinkhammer-Schalke, Tobias Pukrop, Peter Kummer