JMIR mhealth and uhealth · 2018 · 42 citations · 24 references
ClinicalTrials.gov NCT01915836; https://clinicaltrials.gov/ct2/show/NCT01915836 (Archived by WebCite at http://www.webcitation.org/73vGsjG0Y).
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Biochemical verification of tobacco use and cessation
Neal L. Benowitz, Peyton Jacob, Karen Ahijevych et al. · Nicotine & Tobacco Research · 2002 · 1.8K citations · Full text
Health App Use Among US Mobile Phone Owners: A National Survey
Paul Krebs, Dustin T. Duncan · JMIR mhealth and uhealth · 2015 · 1.4K citations · Full text