If you notice frequent infections or that your symptoms last longer when you get sick, it could be related to the use of cigarettes, vapes, e-cigarettes, or exposure to tobacco smoke
Besides, for front line staffs such as salesperson, having a stinky mouth wont help their business (unless their customers also smoke)
An automatic battery would generate vapor automatically when the user puffed on it just like a real cigarette
For all experiments conducted, unless specified otherwise, 0 h refers to the time point immediately before exposure to CS or CSE
Once in the bloodstream, the cancer cells can travel to other areas of the body, causing new tumors to grow (metastasis)