title: Waterpipe tobacco smoking may undermine the progress made in curbing cigarette smoking.
authors.affiliation: Department of Primary Care and Public Health, Imperial College London, Hammersmith, London W6 8RP, UK mohammed.jawad06@imperial.ac.uk.
authors.forename: Mohammed
authors.initials: M
authors.lastname: Jawad
authors.affiliation: Department of Primary Care and Public Health, Imperial College London, Hammersmith, London W6 8RP, UK.
authors.forename: Christopher
authors.initials: C
authors.lastname: Millett
mesh_terms: D005062:European Union; D006801:Humans; D012907:Smoking / Q000009:adverse effects / Q000331:legislation & jurisprudence; D000074606:Smoking Prevention; D014481:United States