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Full text available from ABI/INFORM Dateline: 07/05/1999 to 12/31/2004
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杂志
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Full text available from Research Library: 05/01/2006 to 10/31/2017
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Full text available from ABI/INFORM Trade & Industry: 07/01/2011 to present
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Full text available from U.S. Northeast Newsstream: 04/01/1992 to 03/31/1993
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杂志