Original title: "Da Karl blev Karla: En dansk læges bedrift" (When Karl became Karla: A Danish doctor's achievement) by Bent Rosenwein.
The book deals with gender reassignment surgery, which according to the book was performed on a young American man, Karl, who had traveled to Copenhagen to undergo gender reassignment surgery.
The book only deals peripherally with the gender reassignment surgery that Christine Jorgensen had undergone at Rigshospitalet. Shortly after Christine Jorgensen had her gender reassignment surgery, the Danish Parliament decided that in the future only Danish citizens could have such surgery in Denmark.