53715
In 2005 , the then-president of the Royal College of Surgeons called upon surgeons to use the title of Dr , saying that the use of Mr or Miss was confusing to patients .
 Royal College of Surgeons
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Royal College of Surgeons