ear, nose and throat vs otolaryngology

ear, nose and throat

noun
  • Otorhinolaryngology; a branch of medicine dealing with diseases of the ear, nose and throat. 

otolaryngology

noun
  • The study of diseases of the ear, nose and throat. 

How often have the words ear, nose and throat and otolaryngology occurred in a corpus of books? (source: Google Ngram Viewer )