Chromatography, PaperPaperFiltrationBlood Specimen CollectionChromatographyElectrophoresis, PaperSpecimen HandlingMicropore FiltersChromatography, Thin LayerChromatography, Ion ExchangeDried Blood Spot TestingChromatography, GelChromatography, High Pressure LiquidChromatography, GasOligosaccharidesChromatography, AffinityChemistryChemical PhenomenaFIGLU TestDesiccationMannoseMethodsRhamnoseElectrophoresisBlood StainsAmino AcidsVena Cava FiltersCarbohydratesHexosaminesChemistry Techniques, AnalyticalGlucosamineDisaccharidesGlycosidesCarbon IsotopesChromatography, LiquidGalactoseCelluloseKineticsCellulaseGlycoside HydrolasesThyroxineCarbohydrate SequenceSensitivity and SpecificitySpectrophotometryGlycopeptidesGlycolipidsCongenital HypothyroidismHydrolysisHydrogen-Ion ConcentrationChymotrypsinAxenic CultureNeonatal ScreeningAmino Acid SequenceTritiumDNA, ProtozoanBloodGlycosaminoglycansEscherichia coliTrypsinCarbon RadioisotopesGlycoproteinsParaguayTemperatureReagent StripsCarboxymethylcellulose SodiumReproducibility of ResultsMethylationLiverInfant, NewbornMolecular Sequence DataMolecular WeightRadioimmunoassayPolymerase Chain ReactionVanilmandelic AcidDrug StabilityPeptide FragmentsAir FiltersChromatography, DEAE-Cellulose17-alpha-HydroxyprogesteronePhalarisEicosanoic AcidsBotswanaCellulose 1,4-beta-CellobiosidaseEvaluation Studies as TopicGlucoseMicrochemistryEnzyme-Linked Immunosorbent AssayElectrophoresis, Polyacrylamide GelMass ScreeningReference StandardsPeptococcaceaeChromatography, AgaroseBacteriological TechniquesMass SpectrometryBlood PreservationBlood Chemical AnalysisHumidityTime FactorsHypothyroidismToxoplasmosis, Congenital