Table 5.

Ranking the top 10 cited articles related to electronic cigarette worldwide

SCRa	Authors with year of publication	Title	Source title	Cited by
1st	Bullen et al. 2010 [36]	Effect of an electronic nicotine delivery device (e cigarette) on desire to smoke and withdrawal, user preferences and nicotine delivery: Randomised cross-over trial	Tobacco Control	103
2nd	Etter and Bullen 2011 [39]	Electronic cigarette: Users profile, utilization, satisfaction and perceived efficacy	Addiction	90
3rd	Etter 2010 [6]	Electronic cigarettes: A survey of users	BMC Public Health	71
4th	Vansickel et al. 2010 [42]	A clinical laboratory model for evaluating the acute effects of electronic “cigarettes”: Nicotine delivery profile and cardiovascular and subjective effects	Cancer Epidemiology Biomarkers and Prevention	68
5th	Cahn and Siegel 2011 [37]	Electronic cigarettes as a harm reduction strategy for tobacco control: A step forward or a repeat of past mistakes?	Journal of Public Health Policy	67
6th	Polosa et al. 2011 [5]	Effect of an electronic nicotine delivery device (e-Cigarette) on smoking reduction and cessation: A prospective 6-month pilot study	BMC Public Health	64
7th	Ayers et al. 2011 [35]	Tracking the rise in popularity of electronic nicotine delivery systems (electronic cigarettes) using search query surveillance	American Journal of Preventive Medicine	57
8th	Eissenberg et al. 2010 [38]	Electronic nicotine delivery devices: Ineffective nicotine delivery and craving suppression after acute administration	Tobacco Control	52
9th	Siegel et al. 2011 [40]	Electronic cigarettes as a smoking-cessation tool: Results from an online survey	American Journal of Preventive Medicine	46
10th	Trtchounian et al. 2010 [41]	Conventional and electronic cigarettes (e-cigarettes) have different smoking characteristics.	Nicotine & tobacco research	44

Abbreviation: SCR Standard Competition Ranking.

^aEqual documents have the same ranking number, and then a gap is left in the ranking numbers.