1980
January January; 59 (1): 1 - 85	February February; 59 (2): 87 - 167	March March; 59 (3): 169 - 228
April April; 59 (4): 25 - 320	May May; 59 (5): 321 - 398	June June; 59 (6): 399 - 464
July July; 59 (7): 465 - 566	August August; 59 (8): 567 - 638	September September; 59 (9): 639 - 715
October October; 59 (10): 717 - 813	November November; 59 (11): 815 - 896	December December; 59 (12): 897 - 958