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NAVY FILING MANUAL (FOURTH EDITION) AUGUST 27, 1941. 1. The Secretary of the Navy, on July 5, 1923, directed that the Navy Filing Manual as compiled by the Board appointed for the purpose be adopted for use and placed in effect throughout the entire Naval Service with the exception of the United States Marine Corps.

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GENERAL INSTRUCTIONS INTRODUCTION The first edition of the United States Navy Filing Manual was approved by the Secretary of the Navy July 5, 1923, and ordered put into use by all naval activities. This fourth edition of the Navy Filing Manual has been put in loose leaf form so as to permit periodic replacement of obsolete pages without

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time, the risk declines. In the United States, 82,269 children between 1to 18 years of age who reacted positively to the tuberculin skin test were followed for 20 years (Comstock et al. 1974). Two incidence peaks of active disease where identifiedat ages 1 4 years,

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time, the risk declines. In the United States, 82,269 children between 1to 18 years of age who reacted positively to the tuberculin skin test were followed for 20 years (Comstock et al. 1974). Two incidence peaks of active disease where identifiedat ages 1 4 years,

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