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1995 AHEAD Helper Imputation File Replaced


The 1995 AHEAD Helper imputation file has been re-issued. The new file contains two identification variables not included before: PN (Person Number) and DHLPTYPE (1995 Helper Type). Users who downloaded the file before 02/27/2003 should use the updated 1995 AHEAD Helper imputation file to avoid problems when merging with the 1995 AHEAD Core Helper file.

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