the concentration ( mean +/- sd ) of serum ado-cbl and methyl-cbl in six patients with low total cbl ( 57 +/- 25 pg/ml ) and clinical evidence for cbl deficiency was 35 +/- 12 pg/ml and 22 +/- 22 pg/ml , respectively .
C0042845
cbl
C0042847
cbl deficiency