Adenosine DeaminaseAdenosine Deaminase InhibitorsAdenosineNucleoside DeaminasesCoformycinAMP DeaminasePentostatinReceptor, Adenosine A2AAdenosine KinaseReceptor, Adenosine A1Cytidine DeaminaseDeoxyadenosinesInosineReceptors, Purinergic P1Receptor, Adenosine A3Cytosine DeaminaseDCMP DeaminaseReceptor, Adenosine A2BTuberculosis, PleuralSensitivity and SpecificityRibonucleosidesGuanine DeaminaseReceptors, Adenosine A2XanthinesAdenosine A2 Receptor AntagonistsTubercidinPleural Effusion5'-NucleotidaseAdenosine A2 Receptor AgonistsNucleotide DeaminasesPurinergic P1 Receptor AntagonistsAdenosine A1 Receptor AntagonistsRNA EditingAdenosine A1 Receptor AgonistsPurinergic P1 Receptor AgonistsPhenylisopropyladenosinePurine-Nucleoside PhosphorylaseAdenosine MonophosphateImmunologic Deficiency SyndromesAminohydrolasesAdenineDeaminationTheophylline2-ChloroadenosineDipeptidyl Peptidase 4Adenosine-5'-(N-ethylcarboxamide)Severe Combined ImmunodeficiencyPredictive Value of TestsDeoxyadenine NucleotidesROC CurvePurine-Pyrimidine Metabolism, Inborn ErrorsReceptors, PurinergicNucleotidasesClinical Enzyme TestsAdenine NucleotidesElectrophoresis, Starch GelHydroxymethylbilane SynthaseAdenosylhomocysteinasePurinesHypoxanthinesPleural Effusion, MalignantHypoxanthinePentosyltransferasesPhenethylaminesBiological MarkersKineticsNucleosidesDipyridamoleMolecular Sequence DataCyclic AMPBase SequenceCarbon-Carbon LyasesPurine NucleosidesReproducibility of ResultsProspective StudiesErythrocytesLeukemia, LymphoidPericarditis, TuberculousAdenosine A3 Receptor AntagonistsDiagnostic Tests, RoutineThioinosineCell LineThreonine DehydrataseDiagnostic ErrorsPeritonitis, TuberculousCells, CulturedAdenosine A3 Receptor AgonistsBiopsyMutationLymphocytesFlucytosineDeoxyribonucleosidesDideoxyadenosineFormycinsVidarabineRNA, MessengerTime FactorsS-AdenosylhomocysteineDNATomography, X-Ray Computed