preferably use these sources:
The Nazi Physicians as Leaders in Eugenics and Euthanasia: Lessons for Today – PMC (nih.gov)
Teaching Hard Truths About Medicine and the Holocaust | Journal of Ethics | American Medical Association (ama-assn.org)
Science and Suffering: Victims and Perpetrators of Nazi Human Experimentation – The Wiener Holocaust Library.
The Technology of Mass Murder | Facing History and Ourselves