1997
January January; 57 (1): 1 - 185 January; 57 (2): 195 - 347	February February; 57 (3): 351 - 557 February; 57 (4): 559 - 793	March March; 57 (5): 795 - 1005 March; 57 (6): 1007 - 1215
April April; 57 (7): 1217 - 1402 April; 57 (8): 1405 - 1622	May May; 57 (9): 1625 - 1821 May; 57 (10): 1823 - 2079	June June; 57 (11): 2081 - 2318 June; 57 (12): 2321 - 2540
July July; 57 (13): 2543 - 2810 July; 57 (14): 2823 - 3068	August August; 57 (15): 3071 - 3323 August; 57 (16): 3325 - 3627	September September; 57 (17): 3629 - 3867 September; 57 (18): 3881 - 4151
October October; 57 (19): 4153 - 4444 October; 57 (20): 4447 - 4664	November November; 57 (21): 4667 - 4984 November; 57 (22): 4987 - 5198	December December; 57 (23): 5201 - 5439 December; 57 (24): 5441 - 5613