António L Palmeira, David A Markland, Marlene N Silva, Teresa L Branco, Sandra C Martins, Cláudia S Minderico, Paulo N Vieira, José T Barata, Sidónio O Serpa, Luis B Sardinha, Pedro J Teixeira
Int J Behav Nutr Phys Act. 2009; 6: 9. Published online 2009 February 9. doi: 10.1186/1479-5868-6-9