Number | Date | Country | Kind |
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63-236572 | Sep 1988 | JPX |
Number | Name | Date | Kind |
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4663358 | Hyon et al. | May 1987 | |
4734097 | Tanabe et al. | Mar 1988 | |
4808353 | Nambu et al. | Feb 1989 |
Entry |
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Hydrogels in Medicine and Pharmacy, vol. III, Properties and Applications, Nikolaos A. Peppas, Professor, CRC Press, Inc., Boca Raton, FL. |