Pitta, F ;
Breyer, M.K ;
Hernandes, N.A...
Pitta , F , Breyer , M K , Hernandes , N A , Teixeira , D , Sant'anna , T J , Fontana , A D , Probst , V S , Brunetto , A F , Spruit , M A , Wouters , E F , Burghuber , O C & Hartl , S 2009 , ' Comparison of daily physical activity between COPD patients from Central Europe and South America. ' , Respiratory Medicine , vol. 103 , no. 3 , pp. 421-426 . https://doi.org/10.1016/j.rmed.2008.09.019.
,
2009