Blood ProteinsCapillariesVitelline DuctBlood Protein DisordersSerum AlbuminHemoglobinsBlood Specimen CollectionPulmonary Diffusing CapacityElectrophoresis, CapillaryBlood Protein ElectrophoresisPaperMicrocirculationHeelLaser-Doppler FlowmetryHemoglobinometryPulmonary CirculationVeinsRegional Blood FlowBlood VolumeRetinal VesselsBlood Chemical AnalysisCapillary ActionCapillary PermeabilityBlood Flow VelocityFingersNailsBlood-Air BarrierBlood Glucose Self-MonitoringBlood GlucosePulmonary Gas ExchangePoint-of-Care SystemsCarbon MonoxideParaguay3-Hydroxybutyric AcidHemangioma, CapillaryMicrochemistryCapillary ResistanceOxygenBlood Circulation TimeNeonPulmonary AlveoliReproducibility of ResultsDiabetic KetoacidosisInsulin Infusion SystemsFiltrationBlood Gas AnalysisCapillary ElectrochromatographyCarbon Dioxide