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Electronic cigarette (e-cigarette) use is one of the most popular alternatives to conventional cigarette smoking. This study aimed to investigate the prevalence of cigarette and e-cigarette use among university students from Poland, with particular emphasis on ever and current cigarette and e-cigarette use as well as smoking initiation age. A cross-sectional survey was conducted between 2017 and 2018 in a group of university students in 5 academic centers in Poland. The questionnaire addressed 46 questions about personal attitudes towar