[\'Salzetalklinik der Deutschen Rentenversicherung Westfalen, Bad Salzuflen.\', \'Klinik Sonnenblick der Deutschen Rentenversicherung Hessen, Marburg.\']
[Oncological Rehabilitation and Development of Strategies in Crisis Situations Using the Example of the Covid 19 Pandemic in 2020 by Using a Patient and Staff Survey Results of Pandemic Care].