title: Let us play - fitness is fun!
authors.affiliation: Department of Orthopaedic Surgery, Sports Medicine and Performance Center, Children's Hospital of Philadelphia, King of Prussia, PA 19406, USA. asmithmd@aol.com
authors.forename: Angela D
authors.initials: AD
authors.lastname: Smith
mesh_terms: D015444:Exercise; D006801:Humans; D010988:Play and Playthings