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E-cigarettes: an evidence update <br /> <br />98 <br />Appendices <br />APPENDIX A: PRISM Flow Diagram5 <br /> <br /> <br /> <br /> <br /> <br />5 Please note that we did not carry out a full systematic review for this report but followed systematic review methods. We <br />assessed 94 papers and 9 additional reports included those that were relevant to our objective of describing the use of e- <br />cigarettes and how they impact smoking behaviour, with a particular focus on the UK. <br /> <br />Records identified through <br />database searching <br />(n = 3459 ) <br />Additional records identified <br />through other sources <br />(n = 1) <br />Records after duplicates removed <br />(n =3453) <br />Records screened by <br />title <br />(n =798) <br />Records excluded by <br />title <br />(n =2655) <br />Records screened by <br />abstract <br />(n = 446) <br />Records excluded by <br />abstract <br />(n = 336 (+16 foreign <br />language or abst <br />missing)) <br />Full-text articles <br />assessed for eligibility <br />(n =94 ) <br />Additional reports, news <br />stories etc <br />(n = 10)