Knowledge and Practices of the Prescription of Physical and Sports Activities (PSA) by Doctors in Ouagadougou : InventoryBrigitte, N. , Prosper, L. , Amidou, S. and Moussa, D.Analyse des sources d’efficacité collective chez les footballeurs au Burkina FasoBrigitte NANA, Amidou SAWADOGO, Anicet Paterne Coovi ASSOGBA, Adama TIAMA, Désiré POUDIOUGO |