2001
January January; 142 (1): 1 - 515	February February; 142 (2): 521 - 966	March March; 142 (3): 969 - 1367
April April; 142 (4): 1371 - 1678	May May; 142 (5): 1685 - 2155	June June; 142 (6): 2162 - 2725
July July; 142 (7): 2731 - 3278	August August; 142 (8): 3281 - 3729	September September; 142 (9): 3733 - 4161
October October; 142 (10): 4163 - 4586	November November; 142 (11): 4589 - 5044	December December; 142 (12): 5047 - 5399