health-impact-of-e-cigarettes-a-prospective-3-5-year-study-of-regular-daily-users-who-have-never-smoked
Click through to visit this link – Abstract: Although electronic cigarettes (ECs) are a much less harmful alternative to tobacco cigarettes, there is concern as to whether long-term ECs use may cause risks to human health. health-impact-of-e-cigarettes-a-prospective-3-5-year-study-of-regular-daily-users-who-have-never-smoked.