Primary MyelofibrosisReticulinBone MarrowOsteitis Fibrosa CysticaSplenomegalyMyeloproliferative DisordersReceptors, ThrombopoietinMegakaryocytesFibrosisCystic FibrosisT-Lymphocytopenia, Idiopathic CD4-PositiveBone Marrow CellsMyelodysplastic SyndromesBone Marrow TransplantationBone Marrow DiseasesBone Marrow ExaminationEndomyocardial FibrosisIdiopathic Pulmonary FibrosisBone Marrow NeoplasmsHematopoietic Stem CellsLiver CirrhosisBone Marrow PurgingRetroperitoneal FibrosisMice, Inbred C57BLHematopoiesisTransplantation, Homologous