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Archive of 1989 Online Issues:

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February 1989; s2-39 (1): 1 - 192
 April 1989; s2-39 (2): 193 - 384
June 1989; s2-39 (3): 385 - 576
 August 1989; s2-40 (1): 1 - 192
October 1989; s2-40 (2): 193 - 384
 December 1989; s2-40 (3): 385 - 576