Name Info Provider Link
Quitting Smoking free resource MedlinePlus Health Information https://medlineplus.gov/quittingsmoking.html
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/31160346/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/31160346
subscription/membership/fee required Silverchair Information Systems https://aacrjournals.org/cebp/article-lookup/doi/10.1158/1055-9965.EPI-19-0179