Which of the following is NOT one of the classifications indicating the source of a drug?
A) Natural
B) Synthetic
C) Chemically altered
D) Genetically engineered
C
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Which of the following is the main cause of lung cancer?
a. Asbestos b. Human papillomavirus c. Cigarette (tobacco) smoke d. Radiation
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The ____________________ muscle is primarily responsible for relaxing the vocal folds
Fill in the blank(s) with correct word
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