Author contributions
Conception and design: E.K.M., N.W. Provision of study material or patients: E.K.M., C.S., K.C.W., M.M., I.W.B., M.H., H.J.S., M.S.R., H.G. Coordinated processing of peripheral blood and bone marrow samples: D.H., A.S. Administrative support: U.B., H.G. FISH analyses: A.J. Mass spectrometry: O.B. Data analysis and interpretation: E.K.M., S.H., K.M., A.P., A.B., N.W. Wrote the first manuscript draft: E.K.M., N.W. Manuscript editing and further writing: all authors. Final approval of manuscript: all authors.