| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a collagen vitrigel preventing deposition of a white substance even after culture for a long period. <P>SOLUTION: The collagen vitrigel preventing deposition of the white substance even after the culture for a long period is attained by finding that the deposition of the white substance can be prevented even after the culture for a long period by decreasing calcium concentration and/or phosphorus concentration in the collagen vitrigel. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
