3d
biology
blood cells
bone
bone marrow
bone marrow tissue
cell
closeup
derived
donation
donor
erythrocyte
formation
hematology
hematopoiesis
hematopoietic
illustration
leukocyte
lymphoid
medicine
mesenchymal stem cells
myeloid
progenitor
red bone marrow
regenerative medicine
research
science
spongy
stem cells