Particulate matter in secondhand marijuana smoke includes: Ammonia Cadmium Chromium Hydrogen cyanide Lead Mercury Nickel Because cannabis is a plant, it might also be contaminated with mold, insecticides or pesticides that get released when smoked
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Professional voice users, including teachers, singers, and public speakers, may notice these changes earlier because of frequent vocal strain
Area calculation The area for each segmented part is calculated by adding the pixel values in the mask belonging to the diseased or healthy regions