Käsmann, Lukas; Gurtner, Ralph; Rennollet, Robert; Büntzel, Judith; Micke, Oliver; Belka, Claus; Pazos Escudero, Montserrat; Mücke, Ralph; Rauch, Josefine; Hübner, Jutta Complementary and Alternative Medicine (CAM) Use in Patients Undergoing Radiotherapy: Sex‐specific Prevalence and Associations of Use Based on the S3 Guideline Complementary Medicine in Oncology Questionnaire. In Vivo, 39. ISSN 0258-851X