Houston Health Department on e cigarette ban: 'While users inhale e cigarette aerosol into their lungs, bystanders can also breathe in this aerosol' Houston Daily E cigarette use linked to asthma among adolescents with no other smoking history Read "Public Health Consequences of E Cigarettes" at NAP.edu Asthma, E cigs and Vaping: what you need to know Allergy Asthma Care and Prevention Center The importance of including e cigarettes in smokefree laws Caring for the smoking asthmatic patient Journal of Allergy and Clinical Immunology