Suk Doctors or graduates of the Suk School were the pre-eminent physicians of the Known Universe. They were highly valued for their advanced knowledge and for the mental conditioning which supposedly prevented any betrayal of patients or the possibility of taking human life. Since it would appear that Suk doctors were only ever in the employ of wealthy families and organisations, it could be assumed that their services came at a high price. Moreover, their conditioning against taking human life was of particular importance for Great Houses and other high-profile organisations, as there would supposedly be no chance of Suk doctors ever being used as assassins.