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D353263 | Danezin | Dec 1994 | |
D385113 | Beck et al. | Oct 1997 | |
4596328 | Solheim | Jun 1986 | |
4844253 | Reimers | Jul 1989 | |
5415285 | Reimers | May 1995 | |
5501328 | Keller et al. | Mar 1996 | |
5638954 | Hsien | Jun 1997 |