trauma centre vs traumatology

trauma centre

noun
  • A type of hospital with a highly capable trauma department. 

  • A specialized section of a hospital intended to treat suddenly occurring life-threatening injuries and medical conditions. 

traumatology

noun
  • A branch of medicine that deals with the diagnosis and treatment of trauma. 

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