TY  - RPRT
TI  - A developmental switch in B lymphopoiesis.
AU  - R R Hardy
AU  - K Hayakawa
PY  - 1991
DO  - 10.1073/pnas.88.24.11550
UR  - https://pubmed.ncbi.nlm.nih.gov/1722338/
ID  - 1722338
ER  -