1989
January January; 9 (1): 1 - 353	February February; 9 (2): 355 - 873	March March; 9 (3): 875 - 1380
April April; 9 (4): 1381 - 1812	May May; 9 (5): 1813 - 2288	June June; 9 (6): 2289 - 2770
July July; 9 (7): 2771 - 3154	August August; 9 (8): 3155 - 3592	September September; 9 (9): 3593 - 4118
October October; 9 (10): 4119 - 4585	November November; 9 (11): 4587 - 5272	December December; 9 (12): 5273 - 5757