2004
January January; 18 (1): 1 - 84	March March; 18 (2): 85 - 174
April April; 18 (3): 175 - 264	June June; 18 (4): 265 - 393
July July; 18 (5): 401 - 490	September September; 18 (6): 491 - 582
October October; 18 (7): 583 - 673	December December; 18 (8): 675 - 745