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If you could have three wishes, what would they be? For Atlanta-born Tanner Smith, the answer was clear from a young age. First, he’d want a golden retriever, he wrote in a fourth-grade essay called My Three Wishes. Second, he would play basketball in the NBA. And lastly, he’d help kids with cancer by making them laugh. A little more than a decade later, Tanner is turning these wishes into reality. His family still has Griffy, their Golden Retriever (that wish was easy to gra