TY - GEN AU - Alvarez, Robert AU - Eberhardt, Keith R AU - Elser, Robert AU - Ewen, Lilian M AU - McComb, Robert B AU - Reeder, Dennis J AU - Rej, Robert AU - Shaw, Leslie M AU - Uriano, George A AU - Bowers, Jr AU - Schaffer, Robert C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1983-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-83 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1983 TI - Standard Reference Materials:The measurement of the catalytic (activity) concentration of seven enzymes in NBS human serum SRM 909 ER -