RecruitingDiagnostic testReplacing Bone Marrow Diagnostics With Peripheral Blood Analysis in Cytopenia PatientsThis observational, multi-center study aims to collect data in order to develop a novel, minimally invasive diagnostic tool for MDS based on peripheral blood profiling of circulating hematopoietic stem and progenitor cells (cHSPCs) using single-cell RNA sequencing and DNA sequencing.