RT Journal Article SR Electronic T1 Equivalent Quality Control JF American Society for Clinical Laboratory Science JO Clin Lab Sci FD American Society of Chemistry and Laboratory Science SP 68 OP 69 DO 10.29074/ascls.17.2.68 VO 17 IS 2 A1 Hansen, Kathy A1 Lavanty, Don YR 2004 UL http://hwmaint.clsjournal.ascls.org/content/17/2/68.abstract AB