title: Pleural fluid pH in parapneumonic pleural effusions: drawing the line.
authors.forename: Ioannis
authors.initials: I
authors.lastname: Kalomenidis
authors.forename: Demosthenes
authors.initials: D
authors.lastname: Bouros
mesh_terms: D004322:Drainage; D006801:Humans; D006863:Hydrogen-Ion Concentration; D016013:Likelihood Functions; D010996:Pleural Effusion / Q000737:chemistry* / Q000601:surgery*