1966
January January; 91 (1): 1 - 468	February February; 91 (2): 469 - 909	March March; 91 (3): 911 - 1392
April April; 91 (4): 1393 - 1665	May May; 91 (5): 1667 - 2115	June June; 91 (6): 2117 - 2393
July July; 92 (1): 1 - 284	August August; 92 (2): 285 - 528	September September; 92 (3): 529 - 803
October October; 92 (4): 805 - 1274	November November; 92 (5): 1275 - 1583	December December; 92 (6): 1585 - 1857