Differential Effects of Sound Intervention and Rest on Cardiovascular Parameters in Cancer Patients: A Randomized Cross-over Trial. - Hohneck A; Reyser C; Merx K; Weingärtner S; Mavratzas A; Schumacher G; Linhuber C; Hofmann WK; Burkholder I; Hofheinz RD (Integrative cancer therapies, 2021)