A. intake of certain drugs
B. betel nut chewing
C. cigarette smoking
D. intake of alcohol
Correct Answer: intake of certain drugs ✔
Last Updated: June 28, 2020
A. intake of certain drugs
B. betel nut chewing
C. cigarette smoking
D. intake of alcohol
Correct Answer: intake of certain drugs ✔
Last Updated: June 28, 2020