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. 1980;2(3):158. doi: 10.1155/S1463924680000466
Erratum
Michael A Koupparis
, Ken M Walczak
, Howard V Malmstadt
Michael A Koupparis
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Ken M Walczak
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Howard V Malmstadt
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Copyright © 1980 Hindawi Publishing Corporation.
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PMCID: PMC2547254 PMID: 18927739