TY - GEN AU - Wang,Y L AU - Kodicek,E TI - Vitamin methods: 7. A new modification of the p-aminoacetophenone method for estimating nicotinic acid in urine SN - 0264-6021 PY - 2006///0605 N1 - Publication Type: Journal Article UR - https://doi.org/10.1042/bj0370530 ER -