consultation vs consulting room

consultation

noun
  • An appointment or meeting with a professional person, such as a doctor. 

  • A conference for the exchange of information and advice. 

  • The act of consulting. 

consulting room

noun
  • A room or office within a hospital or medical centre where a medical consultation takes place 

How often have the words consultation and consulting room occurred in a corpus of books? (source: Google Ngram Viewer )