Alessandra Naimaier Bertolazi, Simone Chaves Fagondes, Leonardo Santos Hoff, Vinícius Dallagasperina Pedro, Sérgio Saldanha Menna Barreto, Murray W. Johns
Bertolazi AN, Fagondes SC, Hoff LS, Pedro D, Barreto SSM, Johns MW. Portuguese-language version of the Epworth sleepiness scale: validation for use in Brazil. J Bras Pneumol. 2009;35(9):877-883