The teams did not formulate any set approach to processing File A personnel at the beginning of the task. the procedures identified below. They have, however, generally used These procedures, which have evolved over time, have been followed not only for individuals who have called DNA but for all personnel on the data base, including VA cases: e Collect information ~-Request specified data from each caller on the DNA toll-free lines --Archive records from over 100 repositories --Gather data from individuals knowledgeable about the atmospheric nuclear weapons tests and personnel participation e Establish data base to: --Identify participants in an orderly fashion ~-Incorporate relevant participation and dosimetry information from medical records, REECo files, Lexington Bluegrass Signal Depot records, as well as some 80 other sources # e Provide missing information --Review assembled data for gaps --Reconstruct missing data by establishing a scientifically sound and workable methodology --Incorporate reconstructed information into the data base e Develop final response --Determine participation and dosimetry information for each caller on the toll-free lines ~--Send a letter providing participation and dosimetry information to each caller. The final File A letters are the conclusion of a lengthy procedure. The drafting and processing of these letters is a considerable effort in itself, although not so demanding as the preceding research. 27 The Navy NTPR (NNTPR),