1981
January January; 102 (1): 1 - 135	February February; 102 (2): 137 - 295	March March; 102 (3): 297 - 458
April April; 103 (1): 1 - 161	May May; 103 (2): 163 - 336	June June; 103 (3): 337 - 469
July July; 104 (1): 1 - 105	August August; 104 (2): 107 - 191	September September; 104 (3): 195 - 288
October October; 105 (1): 3 - 96	November November; 105 (2): 97 - 196	December December; 105 (3): 200 - 335