Number | Date | Country | Kind |
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42 22 534 | Jul 1992 | DE |
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4915945 | Pelzer et al. | Apr 1990 | |
4981855 | Naka et al. | Jan 1991 | |
5135916 | Sims et al. | Aug 1992 | |
5157019 | Glover et al. | Oct 1992 | |
5166134 | Lezdey et al. | Nov 1992 |
Number | Date | Country |
---|---|---|
0 222 611 | May 1987 | EP |
WO 9210205 | Jun 1992 | WO |
Entry |
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Kitano et al, Dis Colon Rectum 35(6):560-567 (1992) Abstract BA93:8089. |