Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0033-3506(04)00230-6
Smoking and Youth free resource MedlinePlus Health Information https://medlineplus.gov/smokingandyouth.html
free resource NCI CPTAC Assay Portal https://assays.cancer.gov/CPTAC-68