1989
January January 1989; 59 (1): 1 - 60	February February 1989; 59 (2): 61 - 122	March March 1989; 59 (3): 123 - 184
April April 1989; 59 (4): 185 - 246	May May 1989; 59 (5): 247 - 308	June June 1989; 59 (6): 309 - 370
July July 1989; 59 (7): 371 - 432	August August 1989; 59 (8): 433 - 494	September September 1989; 59 (9): 495 - 556
October October 1989; 59 (10): 557 - 634	November November 1989; 59 (11): 635 - 712	December December 1989; 59 (12): 713 - 774