A Four-Part Approach to Competency AssessmentSchiffgens, Jennifer MBA, MT(ASCP)Bush, Valerie PhD, MT(ASCP)Author information1Clinical Laboratory Improvement Consultants, Chicago, IL2Becton Dickinson, Franklin Lakes, NJLaboratory Medicine 32(8):p 431-435, August 2001. | DOI: 10.1309/1C71-88FW-KRJV-AX52Copyright © Oxford University Press 2015