health centre vs sickbay

health centre

noun
  • A clinic staffed by a group of general practitioners and nurses 

sickbay

noun
  • A room or area for the treatment of the sick or injured in a school. 

  • A place used as a hospital on board a ship, on a spaceship (in science fiction). 

How often have the words health centre and sickbay occurred in a corpus of books? (source: Google Ngram Viewer )