1989
January January; 68 (1): 1 - 238	February February; 68 (2): 239 - 510	March March; 68 (3): 511 - 700
April April; 68 (4): 701 - 862	May May; 68 (5): 863 - 1005	June June; 68 (6): 1005 - 1237
July July; 69 (1): 1 - 220	August August; 69 (2): 221 - 490	September September; 69 (3): 491 - 696
October October; 69 (4): 697 - 924	November November; 69 (5): 925 - 1092	December December; 69 (6): 1093 - 1324