TY - RPRT TI - Standard Reference Materials The measurement of the catalytic (activity) concentration of seven enzymes in NBS human serum SRM 909 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, George N AU - Schaffer, Robert PY - 1983 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NBS SP 260-83 DO - 10.6028/NBS.SP.260-83 ER -