Number | Name | Date | Kind |
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4680267 | Eppstein | Jul 1987 | |
4889812 | Guinn et al. | Dec 1989 | |
4937194 | Pattillo | Jun 1990 |
Entry |
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Tharakan et al Biotechnology and Bioengineering vol. XVII pp. 329-342 (1986). |
Robertson et al Biotechnology and Bioengineering vol. XXVII pp. 1012-1020 (1985). |