TY - RPRT TI - Nonsampling measurement error in administrative data: implications for economic evaluations. AU - N Wolff AU - T W Helminiak DO - 10.1002/(sici)1099-1050(199611)5:6<501::aid-hec232>3.0.co;2-v UR - https://pubmed.ncbi.nlm.nih.gov/9003937/ ID - 9003937 ER -