Thrombocytopenia, Neonatal AlloimmuneThrombocytopeniaPlatelet CountPurpura, Thrombocytopenic, IdiopathicPlatelet TransfusionBlood PlateletsAntigens, Human PlateletPurpura, ThrombocytopenicMegakaryocytesThrombopoietinPlatelet Factor 4Receptors, ThrombopoietinHeparinSplenectomyPhlebovirusLeukopeniaThrombopoiesisDisseminated Intravascular CoagulationPregnancy Complications, HematologicPipecolic AcidsHemorrhageNeutropeniaBunyaviridae InfectionsTreatment OutcomeAntineoplastic Combined Chemotherapy ProtocolsImmunoglobulins, IntravenousDrug Administration Schedule