28. Physical activity and you will sedentary behavior certainly Finnish youngsters. Med Sci Recreations Exerc. 2007; 39 (7):1067–1074. doi: /mss.0b13e318058a603. [PubMed] [CrossRef] [Yahoo Student]
30. Carvalhal MM, Padez MC, Moreira PA, Rosado VM. Over weight and obesity linked to products in the Portuguese children, 7–9 ages. Eur J Bar Fitness. 2007; 17 (1):42–46. doi: /eurpub/ckl093. [PubMed] [CrossRef] [Google Student]