Name Info Provider Link
subscription/membership/fee required Atypon https://journals.sagepub.com/doi/10.4278/ajhp.100304-QUAN-71?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
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=22208414.ui