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That distinction matters because a basic particle filter may not be enough if your main concern is chemical-like smells or gases
They determined: Smoking lowers the pitch of the voice (fundamental frequency Smoking lowers the maximum phonation time (the length of time you can make sound before needing to breathe again) Smoking may cause voice disorders, such as cancer, although functional disorders (i.e., injury) were not clearly proven Smoking can dry the vocal cord mucosa and irritate the vocal cords Smoking causes vocal cord inflammation Pulmonary function is weakened (breath supply and vocal power) Of note, it is not the tobacco that is the culprit
Mononucleosis Mononucleosis (mono) is an infection that is common in teens and young adults
Two young lads, go back in time and bring back history to complete their school project-what's there not to like in this movie
Science Asia, 36 (3), 194198
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