Life SciencesHematologyPathologyAutoimmunityHematopathologyImmunopathologyAutoantibodiesAutoimmune Disease PathogenesisAutoimmune Disease PathologyAutoimmune DiseasesAutoimmune Hematologic DiseaseAutoimmune PathogenesisAmegakaryocytic ThrombocytopeniaAutoimmune ThrombocytopeniaAutoimmune Thrombotic Thrombocytopenic PurpuraImmune-mediated ThrombocytopeniaPlatelet Autoantibodies