THE NAZI DOCTORS: Medical Killing and the Psychology of Genocide by Dr Robert Jay Lifton, is available online now. I read the book a few years ago.
http://www.holocaust-history.org/lifton/contents.shtml
FOREWORD
Introduction: “This World Is Not This World”
PART I
“LIFE UNWORTHY OF LIFE”: THE GENETIC CURE
Introduction to Part I
1. Sterilization and the Nazi Biomedical Vision
2. “Euthanasia”: Direct Medical Killing
3. Resistance to Direct Medical Killing
4. “Wild Euthanasia” : The Doctors Take Over
5. Participants
6. Bringing “Euthanasia” to the Camps: Action Special Treatment 14f13
PART II
AUSCHWITZ: THE RACIAL CURE
Introduction to Part II
7. The Auschwitz Institution
8. Selections on the Ramp
9. Selections in the Camp
10. Socialization to Killing
11. Prisoner Doctors: The Agony of Selections
12. Prisoner Doctors: Struggles to Heal
13. Prisoner Doctors: Collaboration with Nazi Doctors
14. Killing with Syringes: Phenol Injections
15. The Experimental Impulse
16. “A Human Being in an SS Uniform” : Ernst B.
17. Dr. Auschwitz: Josef Mengele
18. Healing Killing Conflict: Eduard Wirths
PART III
THE PSYCHOLOGY OF GENOCIDE
Introduction to Part III
19. Doubling: The Faustian Bargain
20. The Auschwitz Self: Psychological Themes in Doubling
21. Genocide
Afterword: Bearing Witness