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http://t.co/ynjAeGJLAU Relationship between exercise capacity and quality of life in adolescent... http://t.co/hpiGY4Fscr #backpain #pain
http://t.co/ynjAeGJLAU Relationship between exercise capacity and quality of life in adolescent... http://t.co/hpiGY4Fscr #backpain #pain