| Number | Name | Date | Kind |
|---|---|---|---|
| 3919416 | Cosby | Nov 1975 | |
| 3923983 | Pensack | Dec 1975 | |
| 4116664 | Jones | Sep 1978 | |
| 4310343 | Verdegaal et al. | Jan 1982 | |
| 4402852 | Young | Sep 1983 | |
| 4404116 | Young | Sep 1983 | |
| 4445925 | Young | May 1984 | |
| 4564504 | Sorber | Jan 1986 | |
| 4673522 | Young | Jun 1987 | |
| 4776963 | Inagaki et al. | Oct 1988 | |
| 4817333 | Szepessy et al. | Apr 1989 | |
| 5185151 | Young | Feb 1993 | |
| 5989595 | Cummins | Nov 1999 |
| Entry |
|---|
| Medline Abstract, Accession No. 75126719, 1975. |