Figure 1

Resolution of neutropenia and Vitamin B6 deficiency following oral pyridoxine supplementation. The absolute neutrophils per microliter blood are shown in open circles with a solid line. The blood levels of Vitamin B6 are shown as filled squares, with the dashed line. The duration of pyridoxine administration (150 mg/day) is shown as the horizontal grey bars (with a brief period of non-compliance in July). The administration of 300 ug sub-cutaneous G-CSF every other day is shown with asterisks.