AUTHOR=Ji Wei , Shi Liyong , Lin Xinjun , Ji Zhiqiang , Zhao Zhihuang , Chen Yanping , Huang Pengxiang , Wang Xiali , Dai Xiaofang , Cheng Jing , Guo Lujun , Wu Diwei , Chen Yibiao , Wu Zhangcai , Chen Xiaoyang TITLE=Gender differences in preferences, gateway effects, and potential motivations among e-cigarette users in China JOURNAL=Frontiers in Public Health VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2025.1417218 DOI=10.3389/fpubh.2025.1417218 ISSN=2296-2565