TY - JOUR AU - Roos, LL; Wajda, A TI - Record linkage strategies. Part I: Estimating information and evaluating approaches JO - Methods Inf Med IS - S02 VL - 30 PY - 1991 DO - 10.1055/s-0038-1634828 L3 - PubMed-ID: 1857246 SP - 117 EP - 123. ER -