Pacheco, CCosta, AAmado, JAlmeida, P2014-06-062014-06-062014Rev Port Pneumol. 2014: S0873-2159(14)00046-4.http://hdl.handle.net/10400.23/611engCantoDoença Pulmonar Obstrutiva CrónicaSinging in chronic obstructive pulmonary disease patients: A pilot study in PortugalCantar em doentes com doenc¸a pulmonar obstrutiva crónica: um estudo-piloto em Portugaljournal article