medical center vs san

medical center

noun
  • Synonym of hospital 

  • Synonym of sickbay 

  • Synonym of clinic 

san

noun
  • A letter of the Archaic Greek alphabet (uppercase Ϻ, lowercase ϻ) that came after pi and before qoppa. 

How often have the words medical center and san occurred in a corpus of books? (source: Google Ngram Viewer )