References in periodicals archive ?
6] vitamer and 4-pyridoxic acid concentrations of men fed controlled diets.
Clinical analysis of vitamin B(6): determination of pyridoxal 5'-phosphate and 4-pyridoxic acid in human serum by reversed-phase high-performance liquid chromatography with chlorite postcolumn derivatization.
Plasma B-6 vitamer and plasma and urinary 4-pyridoxic acid concentrations in young women as determined using high performance liquid chromatography.
6] vitamers in plasma and 4-pyridoxic acid in urine of adolescent girls by reversed-phase high-performance liquid chromatography.
Elevated plasma 4-pyridoxic acid in renal insufficiency.