Name Info Provider Link
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=1945-7359&volume=45&issue=3&spage=563&aulast=Shiffman
E-Cigarettes free resource MedlinePlus Health Information https://medlineplus.gov/ecigarettes.html
free resource NCI CPTAC Assay Portal https://assays.cancer.gov/CPTAC-68