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What observations confirm the existence of protostars?
Pharmacological Methods
Techniques and processes used in the creation, administration, and study of drugs and their effects on the body.
Behavioral Methods
Techniques based on psychological principles of behavior that are used to modify human actions.
Teenagers
Individuals who are in the age group of 13 to 19 years, a period marked by various physical, emotional, and psychological changes.
Starting To Smoke
Refers to the initial stage or act of beginning to use tobacco products, typically cigarettes.
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