A large number

30.03.2020 19:50

In the smoke of cigarettes contains a large number of harmful carcinogenic substances such as nicotine, cyanide, arsenic, formaldehyde, carbon dioxide, carbon monoxide, synical acid, polonium, lead, bismuth, with a long constant effect of which such diseases as papilloma, leukoplakia of the mucous membrane begin to develop and Its discyratoses, pachidermia, fibroma, chronic inflammatory processes that are not inferior to treatment and so on.