title: Children with problems in physical education in school, I. Social factors, school performance, and attitudes towards physical education and sports.
mesh_terms: D001290:Attitude; D002648:Child; D005260:Female; D006801:Humans; D007859:Learning Disabilities / Q000523:psychology*; D008297:Male; D010806:Physical Education and Training; D012917:Social Adjustment; D013177:Sports