Kujala, U M Born to be rich, physically active, fit and healthy? [electronic resource] - Scandinavian journal of medicine & science in sports Jun 2010 - 367 p. digital Publication Type: Comment; Editorial ISSN: 1600-0838 Standard No.: 10.1111/j.1600-0838.2010.01137.x doi Subjects--Topical Terms: ExerciseHumansPhysical FitnessSocial Class