TY - RPRT TI - Practical experience with a quality control procedure using retained patient specimens on Technicon H1 and COULTER S 880. AU - P Rustad AU - P K Lund PY - 1990 DO - 10.1111/j.1600-0609.1990.tb01522.x UR - https://pubmed.ncbi.nlm.nih.gov/2279550/ ID - 2279550 ER -