1998
January January; 41 (4): 459 - 597	February February; 41 (5): 603 - 754
March March; 41 (6): 763 - 867	April April; 41 (7): 875 - 1026
May May; 41 (8): 1037 - 1184	June June; 41 (9): 1187 - 1362
August August; 41 (10): 1371 - 1471	September September; 42 (1): 3 - 139
October October; 42 (2): 147 - 284	November November; 42 (3): 293 - 554