Platelet Membrane GlycoproteinsBlood PlateletsPlatelet AggregationThrombastheniaPlatelet Glycoprotein GPIIb-IIIa ComplexPlatelet Glycoprotein GPIb-IX ComplexPlatelet AdhesivenessFibrinogenvon Willebrand FactorPlatelet CountAntigens, Human PlateletCell MembranePlatelet Aggregation InhibitorsAntibodies, MonoclonalThrombinAdenosine DiphosphateImmunoglobulin Fab FragmentsGlycoproteinsBleeding TimeRistocetinThrombocytopeniaPlatelet ActivationCrotalid VenomsPlatelet Factor 4Platelet Function TestsPlatelet TransfusionThrombosisMegakaryocytesMolecular Sequence DataPlatelet Membrane Glycoprotein IIbAmino Acid SequenceEpitopesPlatelet Activating FactorP-SelectinBernard-Soulier SyndromeCell AggregationIntegrin alpha2MembranesMembrane LipidsMembrane ProteinsBenzamidinesProtein BindingAspirinPeptidesCollagenIntegrin beta3Intracellular MembranesOligopeptidesBinding SitesPeptide FragmentsMembrane GlycoproteinsMolecular WeightMembrane PotentialsKineticsCell Membrane PermeabilityErythrocyte MembranePurpura, Thrombocytopenic, IdiopathicRecombinant ProteinsHeparinCricetinaeCalciumHemorheologyPurpura, ThrombocytopenicMembranes, ArtificialDual Specificity Phosphatase 2Electrophoresis, Polyacrylamide GelCell LineBlood CoagulationFibrinolytic AgentsCell AdhesionTyrosineHemorrhageFlow CytometryMembrane FluidityBlood Platelet DisordersCHO CellsMicroscopy, Electronvon Willebrand DiseasesReceptors, Cell SurfaceThromboxane A2Base SequenceProtein ConformationHemostasisMacromolecular SubstancesRabbitsReceptors, VitronectinDose-Response Relationship, DrugIntegrinsCells, CulturedTime FactorsReceptors, CollagenImmunosorbent TechniquesFluorescent Antibody TechniqueDogsAntibodiesViral Envelope ProteinsProtein Structure, TertiaryImmunoelectrophoresis, Two-DimensionalMutationThrombospondins