TY - GEN AU - R Mavrodineanu AU - R W Seward C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1981-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.260-71 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1981 TI - Standard Reference Materials ::Summary of the clinical laboratory standards issued by the National Bureau of Standards/ ER -