1999
January January; 92 (1): 1 - 54	February February; 92 (2): 55 - 104	March March; 92 (3): 105 - 158
April April; 92 (4): 159 - 216	May May; 92 (5): 217 - 270	June June; 92 (6): 271 - 327
July July; 92 (7): 329 - 386	August August; 92 (8): 387 - 440	September September; 92 (9): 441 - 494
October October; 92 (10): 495 - 547	November November; 92 (11): 549 - 599	December December; 92 (12): 611 - 663