TY - JOUR AU - Sniegoski, Lorna AU - Nelson, Bryant AU - Satterfield, Mary AU - Zhang, Nien AU - Hornikova, Adriana AU - Welch, Michael AU - Pfeiffer, Christine C2 - Clinical Chemistry DA - 2005-11-01 LA - en M1 - 51 PB - Clinical Chemistry PY - 2005 TI - Development of a Serum-Based Standard Reference Material with Certified Values for Homocysteine and Folate ER -