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Archive of 1981 Online Issues:

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February 1981; 22 (1): 1 - 153
 April 1981; 22 (2): 155 - 346
May 1981; 22 (3): 347 - 582
 June 1981; 22 (4): 583 - 736
August 1981; 22 (5): 737 - 938
 September 1981; 22 (6): 939 - 1140
November 1981; 22 (7): 1141 - 1365
 December 1981; 22 (8): 1367 - 1611