Simultaneous separation of naproxen and 6-O-desmethylnaproxen metabolite in saliva samples by liquid chromatography–tandem mass spectrometry: pharmacokinetic study of naproxen alone and associated with esomeprazole - Dionisio, Thiago José; Oliveira, Gabriela de Moraes; Morettin, Marina; Faria, Flavio Augusto Cardoso de; Santos, Carlos Ferreira dos; Calvo, Adriana Maria (PLOS ONE, 2020)