"TNM-Klassifikation (T-Stadium) von Bronchialkarzinomen" (https://youtu.be/gI-xrU_1DCI) by Prof. Hilke Vorwerk (https://www.youtube.com/channel/UCpBHT7vSwpHdOQdVJ2IYdGA) can be reused under the CC BY-SA license (https://creativecommons.org/licenses/by-sa/4.0/).

"TNM-Stadium (N-/M-Stadium) von Bronchialkarzinomen" (https://youtu.be/6KFy45OL3b4) by Prof. Hilke Vorwerk (https://www.youtube.com/channel/UCpBHT7vSwpHdOQdVJ2IYdGA) can be reused under the CC BY-SA license (https://creativecommons.org/licenses/by-sa/4.0/).