paramedic vs stretcher-bearer

paramedic

noun
  • An individual trained to medically stabilize people through various interventions, victims of trauma or medical events outside of a hospital setting and preparing them for transport to a medical facility. 

  • An individual who is licensed at the state or national level to practice medical interventions in an emergency pre-hospital setting. 

stretcher-bearer

noun
  • A person who carries, or helps to carry, injured or dead people on a stretcher. 

How often have the words paramedic and stretcher-bearer occurred in a corpus of books? (source: Google Ngram Viewer )