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1971
January January; 111 (1): 3 - 222	February February; 111 (2): 224 - 444	March March; 111 (3): 446 - 662
April April; 111 (4): 663 - 872	May May; 112 (1): 1 - 224	June June; 112 (2): 225 - 442
July July; 112 (3): 443 - 666	August August; 112 (4): 667 - 870	September September; 113 (1): 1 - 216
October October; 113 (2): 217 - 412	November November; 113 (3): 414 - 616	December December; 113 (4): 618 - 820