1999
January January; 13 (1): 3 - 175	February February; 13 (2): 181 - 352	March March; 13 (3): 355 - 514
April April; 13 (4): 517 - 657	May May; 13 (5): 659 - 796	June June; 13 (6): 799 - 1048
July July; 13 (7): 1051 - 1217	August August; 13 (8): 1225 - 1433	September September; 13 (9): 1435 - 1626
October October; 13 (10): 1629 - 1798	November November; 13 (11): 1801 - 1975	December December; 13 (12): 1977 - 2225