1980
January January; 106 (1): 1 - 424	February February; 106 (2): 425 - 648	March March; 106 (3): 649 - 1046
April April; 106 (4): 1047 - 1264	May May; 106 (5): 1323 - 1658	June June; 106 (6): 1659 - 2039
July July; 107 (1): 1 - 374	August August; 107 (2): 375 - 640	September September; 107 (3): 641 - 862
October October; 107 (4): 863 - 1272	November November; 107 (5): 1273 - 1662	December December; 107 (6): 1663 - 2157