Gisella Perl
In June 1948, Gisella Perl published her story, called I was a Doctor in Auschwitz.  In the book, she talks about the horrors she saw there as an inmate doctor. The book includes Perl's descriptions of Joseph Mengele's experiments; of how she tried to save as many inmates as possible; and how the Nazi doctors would order operations on young women's breasts without anesthetics, because the warden, Irma Grese, liked watching them suffer.