1. Electronic cigarettes and vaping: a new challenge in clinical medicine and public health. A literature overview;Palazzolo;Front. Public Health,2013
2. J. Woodcock, Letter to Mr. Matt Salmon, President, Electronic Cigarette Association. (2013). Available from: http://www.fda.gov/downloads/Drug/GuidanceComplianceRegulatoryInformation/UCM225263.pdf.
3. Council on Science and Public Health (CSAPH), American Medical Association Use of electronic cigarettes in smoking cessation programs. Report 6 (A-10), 159th Annual Meeting Chicago, IL:American Medical Association House of Delegates Available from: http://www.ama-assn.org//resources/doc/csaph/a10csaph6ft.pdf.
4. DIRECTIVE 2014/40/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL:on the approximation of the laws, regulations and administrative provisions of the Member States concerning the manufacture, presentation and sale of tobacco and related products and repealing Directive 2001/37/EC, 3 April 2014.
5. Comparison and combination of spectroscopic techniques for the detection of counterfeit medicines;Sacré;J. Pharm. Biomed. Anal.,2010