Histomorphometry of bone marrow biopsies in chronic myeloproliferative disorders with associated thrombocytosis-features of significance for the diagnosis of primary (essential) thrombocythaemia - Thiele,J.; Schneider,G.; Hoeppner,B.; Wienbold,S.; Zankovich,R.; Fischer,R. (Virchows Arch A Pathol Anat, 1988)