The nicotine content in a vape juice bottle is indicated by the nicotine strength, typically expressed in milligrams per milliliter (mg/ml)
Acknowledgements We would like to thank the medical practitioners from the Doctor Association Devoted to New Health and healthcare practitioners in Songjiang district and Fengxian district for field work assistance, and Professor Michael Engelau (Center for Diseases Control and Prevention, US) for giving suggestions and comments on this manuscript
Airport security staff tend to be very strict when removing dangerous items from luggage, with good reason
The color of the pack often indicates the strength of the cigarette stronger cigarettes are packaged in red, black or dark packs, while weaker cigarettes are packaged in white or light colors
While some people want to avoid talking about it and pretend it will just go away, we believe in harm reduction, so we did the work to find the brands we recommend
