Clip of quote: Nobody knows the cause of hyperkinetic behavior in a child. Clip of quote: Nobody knows the cause of hyperkinetic behavior in a child. Yarn is the best way to find video clips by quote. Find the exact moment in a TV show, movie, or music video you want to share. Easily move forward or backward to get to the perfect spot. It's available on the web and also on Android and iOS.
Nobody knows the cause of hyperkinetic behavior in a child.
Image of Nobody knows the cause of hyperkinetic behavior in a child.
Nobody knows the cause of hyperkinetic behavior in a child.
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