TY  - JOUR
AU  - Bryant Nelson
AU  - Christine Pfeiffer
AU  - S Margolis
AU  - C Nelson
C2  - Analytical Biochemistry
DA  - 2003-02-01
LA  - en
M1  - 313
PB  - Analytical Biochemistry
PY  - 2003
TI  - Affinity Extraction Combined with Stable Isotope Dilution LC/MS for the Determination of 5-Methyltetrahydrofolate in Human Plasma
ER  -