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[2] NORTHWESTERN UNIV,SCH MED,DEPT PATHOL,CHICAGO,IL 60611
[3] VET ADM LAKESIDE HOSP,CHICAGO,IL 60611
[4] UNIV KENTUCKY,COLL MED,DEPT PATHOL,DIV EXPTL PATHOL,LEXINGTON,KY 40506
[5] ABBOTT LABS,N CHICAGO,IL 60064