I am trying to find a short story I read in which a new doctor makes a mistake that kills a patient. Doctor is distraught. Later in the story a killer chases the doctor who goes through a door in an abandoned wing of the hospital. The wing is occupied by the ghosts of all the patients who died from mistakes by doctors in training. The ghosts protect the doctor from the killers.
I believe I read it between 1996 and 2010. It may have been in a sci-fi anthology. I don’t read horror stories.