A feasibility study with embedded pilot randomised controlled trial and process evaluation of electronic cigarettes for smoking cessation in patients with periodontitis.
Richard HollidayPhilip M PreshawVicky RyanFalko F SniehottaSuzanne McDonaldLinda BauldElaine McCollPublished in: Pilot and feasibility studies (2019)
ISRCTN, ISRCTN17731903; registered 19 September 2016 http://www.isrctn.com/ISRCTN17731903.