Set of video dimensions SD, HD, FHD, 4K, 6K, 8K ... and lines Abstract background 4k pink lilac lavender light dark black smoke waves and lines 4k wallpapers pc stock illustrations Abstract background ...

ucsf.edu Background: Exposure to secondhand smoke causes lung cancer; however, there are little data in the open literature on the in vivo toxicology of fresh sidestream cigarette smoke to guide the ...