Medicine

Medicine was the art of healing. Liz Shaw had a degree in medicine. (TV: Spearhead from Space) Vicki Pallister studied medicine at the age of ten for an hour a week using a machine. (TV: The Web Planet)

The Tenth Doctor described medicine as an ongoing war. Treatments evolved and progressed, but so too did the viruses. (TV: New Earth)

When the Tenth Doctor arrived on the planet Malcassairo in the year 100 trillion, he announced that he was called "the Doctor". Professor Yana asked if his doctorate was in medicine, to which the Doctor replied that he was a doctor "of everything". (TV: Utopia)