SCHMOOSE vs shmoose

SCHMOOSE

noun
  • A brain microprotein produced by mitochondria, malformed forms of which are thought to be involved in Alzheimer's 

shmoose

noun
  • A microprotein involved in engergy metabolism in the brain, possibly linked to Alzheimer's disease. 

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