E cigs have similar risks to cigs for some diseases and nearly as high for others. Dual use riskier than smoking alone Stanton Glantz blog E cigarettes are nearly as risky as cigarettes; dual use is worse: The evidence continues to pile up Stanton Glantz blog Frontiers The new nicotine epidemic: understanding the systemic harms of e cigarettes in the adolescent population How tobacco* impacts your health Mass.gov