coronary perfusion has shown that an intramolecularly crosslinked hemoglobin ( hb ) with a very low affinity for o2 ( hb crosslinked covalently between the beta chains with 2-nor-2-formylpyridoxal 5'-phosphate , hbxl ) has several advantages over ordinary hb .
C0019016
hemoglobin
C0019046
hb