1939-1945 1995e-413 20thcentury abuseof atrocities audiovisualaids bodyimage cultureinmotionpictures diagnosticimaging ethics euthanasia germany history humanexperimentationinmedicine killingofthementallyill medical medicalethics medicalillustration mentallyill motionpictures nationalsocialismandmedicine radiography sociology worldwar wz348c329s1995