2007
January January; 81 (1): 1 - 438 January; 81 (2): 439 - 1051	February February; 81 (3): 1053 - 1539 February; 81 (4): 1541 - 2091	March March; 81 (5): 2093 - 2542 March; 81 (6): 2543 - 3048
April April; 81 (7): 3049 - 3674 April; 81 (8): 3675 - 4385	May May; 81 (9): 4387 - 4909 May; 81 (10): 4911 - 5426	June June; 81 (11): 5427 - 6161 June; 81 (12): 6163 - 6774
July July; 81 (13): 6775 - 7328 July; 81 (14): 7329 - 7822	August August; 81 (15): 7823 - 8371 August; 81 (16): 8373 - 8849	September September; 81 (17): 8851 - 9609 September; 81 (18): 9611 - 10206
October October; 81 (19): 10207 - 10835 October; 81 (20): 10837 - 11552	November November; 81 (21): 11553 - 12100 November; 81 (22): 12101 - 12718	December December; 81 (23): 12719 - 13278 December; 81 (24): 13279 - 13944