A. Total pubmed searches= 1558 
     Total pubmed searches = "Mesh search" + "Text word search 1" + "Text word search 2"
        Mesh search= ("glycosylation site" OR "glycan structure") AND ("Humans"[Mesh] OR "Mice"[Mesh]) NOT (viral OR virus) NOT proteom*
        Text word search 1= pubmed structural characterization + glycans + human + glycoprotein : filter-human 
        Text word search 2= pubmed mass spectrometry + glycan + human + glycoprotein : filter- human.txt 

B. Existing papers in GlyGen (UCKB + UniProtKB) = 801

C. Papers not in GlyGen (fgrep -vf "pubmed search" "existing search") = 1447

D. Final count: "Existing papers in GlyGen" + "Papers not in GlyGen" = 2,278 

  