Name	Info	Provider	Link
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pntd.0000673
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20454614/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/20454614
Full text from University of California eScholarship	free resource	eScholarship, California Digital Library, University of California	https://escholarship.org/uc/item/14x7383p