Name Info Provider Link
Quitting Smoking free resource MedlinePlus Health Information https://medlineplus.gov/quittingsmoking.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=19659946.ui
free resource Wiley https://onlinelibrary.wiley.com/doi/10.1111/j.1468-1293.2009.00735.x