@inbook{1173713162, author={Mark B. Stephens and Scott K. Andrews}, editor={South-Paul, Jeannette E. and Matheny, Samuel C. and Lewis, Evelyn L.}, title={Physical Activity in Adolescents}, booktitle={CURRENT Diagnosis & Treatment: Family Medicine, 5e}, publisher={McGraw Hill}, address={New York, NY}, year={2020}, url={accessmedicine.mhmedical.com/content.aspx?aid=1173713162} }