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1981
January January; 9 (1): 1 - 70	March March; 9 (2): 75 - 173	May May; 9 (3): 177 - 302
July July; 9 (4): 307 - 391	September September; 9 (5): 393 - 492	November November; 9 (6): 493 - 583