TY - RPRT TI - A quality control product for urinalysis. AU - S M Becker AU - G Ramirez AU - H C Pribor AU - A L Gillen PY - 1973 DO - 10.1093/ajcp/59.2.185 UR - https://pubmed.ncbi.nlm.nih.gov/4687621/ ID - 4687621 ER -