the vitamin b6 status of nigerian women , and the effects of three contraceptive methods -- intrauterine contraceptive device , injectable progestogen , and combination estrogen-progestogen oral contraceptive pills -- on the vitamin b6 status of these women were assessed by measuring the erythrocyte alanine aminotransferase ( ala-at ) activity both with and without in vitro stimulation by pyridoxal-5'-phosphate .
C0087162
vitamin b6
C0034266
pyridoxal-5