Spatiotemporal Characteristics and Influential Factors of Electronic Cigarette Web-Based Attention in Mainland China: Time Series Observational Study
BackgroundThe popularity of electronic cigarettes (e-cigarettes) has steadily increased, prompting a considerable number of individuals to search for relevant information on them.Previous e-cigarette infodemiology studies have focused on assessing the quality and reliability of website content and quantifying the impact of policies.In reality, most