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1981
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January
January; 77 (1): 1 - 117 |
February
February; 77 (2): 121 - 229 |
March
March; 77 (3): 233 - 346 |
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April
April; 77 (4): 349 - 487 |
May
May; 77 (5): 489 - 591 |
June
June; 77 (6): 597 - 712 |
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July
July; 78 (1): 1 - 110 |
August
August; 78 (2): 113 - 229 |
September
September; 78 (3): 233 - 344 |
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October
October; 78 (4): 349 - 453 |
November
November; 78 (5): 457 - 589 |
December
December; 78 (6): 593 - 700 |
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