Harm Perception of Electronic Nicotine Delivery System Versus Regular Cigarettes in Singapore: Findings from a Nationwide Study. - Koh, Yen Sin; Sambasivam, Rajeswari; AshaRani, P.V; Abdin, Edimansyah; Bernard, Tan Chin Wee; Shafie, Saleha; Ma, Stefan; Chow, Wai Leng; Chong, Siow Ann; van der Eijk, Yvette; Subramaniam, Mythily (International Journal of Behavioral Medicine, 2026)