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Archive of 1989 Online Issues:

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January 1989; 23 (1): 1 - 80
 February 1989; 23 (2): 81 - 176
 March 1989; 23 (3): 177 - 272
April 1989; 23 (4): 273 - 368
 May 1989; 23 (5): 369 - 464
 June 1989; 23 (6): 465 - 560
July 1989; 23 (7): 561 - 648
 August 1989; 23 (8): 649 - 736
 September 1989; 23 (9): 737 - 824
October 1989; 23 (10): 825 - 912
 November 1989; 23 (11): 913 - 992
 December 1989; 23 (12): 993 - 1075