https://medicalxpress.com/news/2018-10-e-cigarettes-benefits-tobacco.html
5150sick Under Ground Hustler Staff member VU Administrator Senior Moderator VU Donator Diamond Contributor Press Corps Member For 5 Years Mod Team Leader Oct 17, 2018 #1 https://medicalxpress.com/news/2018-10-e-cigarettes-benefits-tobacco.html