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Adolescence | Definition, Characteristics, & Stages | Britannica
Adolescence | Psychology Today
What Age is a Teenager? How to Understand Your Adolescent
Why teenagers aren't what they used to be - BBC
Understanding The Stages Of Asolescence | BetterHelp
Adolescence - Wikipedia
Stages of Adolescence - HealthyChildren.org
Teenager Ages Range: Understanding the Crucial Years of Growth
The Growing Child- Teenager (13 to 18 Years) - Stanford …
Understanding the Psychology of Adolescence | Psych Central