@article {316359,
	title = {A. N-glycolyl groups of nonhuman chondroitin sulfates survive in ancient fossils},
	journal = {Proc Natl Acad Sci U S A},
	volume = {114},
	number = {39},
	year = {2017},
	month = {09/},
	pages = {E8155-E8164},
	abstract = {<p>Biosynthesis of the common mammalian sialic acid</p>
},
	isbn = {0027-8424},
	url = {https://www.ncbi.nlm.nih.gov/pubmed/28893995},
	author = {Bergfeld, AK and Lawrence, R and Diaz, SL and Pearce, OMT and Ghaderi, D and Gagneux, P and Leakey, MG and Ajit Varki}
}
