Srbinoska, Marija, Zoran Kavrakoski, Vesna Rafajlovska, and Jana Simonovska. 2019. “Determined and Declared Nicotine Content in Refill Liquids for Electronic Cigarettes Marketed in North Macedonia”. Archives of Industrial Hygiene and Toxicology 70 (2). https://doi.org/10.2478/aiht-2019-70-3191.