TY - GEN AU - P Ellerbe AU - C Phinney AU - Lorna Sniegoski AU - Michael Welch C2 - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD DA - 1999-12-01 00:12:00 LA - en M1 - 2104 PB - Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD PY - 1999 TI - Validation of the Conversion to New Instrumentation and the Modernization of Isotope Dilution Mass Spectrometric Definitive Methods for Organic Serum Analytes ER -