2000
January January; 154 (1): 1 - 496	February February; 154 (2): 497 - 953	March March; 154 (3): 955 - 1417
April April; 154 (4): 1419 - 1919	May May; 155 (1): 1 - 479	June June; 155 (2): 481 - 993
July July; 155 (3): 0 - 1483	August August; 155 (4): 0 - 2021	September September; 156 (1): 0 - 469
October October; 156 (2): 471 - 926	November November; 156 (3): 927 - 1460	December December; 156 (4): 1461 - 2140