<Li> A Hemocytoblast, a multipotent hematopoietic stem cell, becomes </Li> <Li> a common myeloid progenitor or a multipotent stem cell, and then </Li> <Li> a unipotent stem cell, then </Li> <Li> a pronormoblast, also commonly called an proerythroblast or a rubriblast . </Li>

At which stage of erythrocyte development are the rbcs released into the blood