Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22105930/
	subscription/membership/fee required	Royal Society of Chemistry	https://doi.org/10.1039/c1ob06554h
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22105930