AGREEMENT
| CUSIP No. 00000X000 | 13 G | Page 22 of 23 Pages |
Exhibit 99.1
Pursuant to Rule 13d-1(k)(1) promulgated pursuant to the Securities Exchange Act of 1934, as amended, the undersigned agree that the attached Schedule 13G is being filed on behalf of each of the undersigned.
| February 13, 2004 |
||||||||
| By: | /s/ Xxxxxxx Sun | |||||||
| Xxxxxxx Sun | ||||||||
| Managing General Partner | ||||||||
| February 13, 2004 |
VENROCK ASSOCIATES II, L.P. | |||||||
| By: | /s/ Xxxxxxx Sun | |||||||
| Xxxxxxx Sun | ||||||||
| Managing General Partner | ||||||||
| February 13, 2004 |
GENERAL PARTNERS | |||||
| * | ||||||
| Xxxxxxx X. Xxxxxx | ||||||
| * | ||||||
| Xxxxxx X. Xxxxx | ||||||
| * | ||||||
| Xxxx X. Xxxxxxxx | ||||||
| * | ||||||
| Xxxxxxx X. Xxxxx | ||||||
| * | ||||||
| Xxxxxx X. Xxxxxxxxx | ||||||
| /s/ Xxxxxxx X. Xxxxxxx | ||||||
| Xxxxxxx X. Xxxxxxx | ||||||
| * | ||||||
| Xxxxx X. Xxxxxxxx | ||||||
| /s/ Xxxxx X. Xxxxxxx | ||||||
| Xxxxx X. Xxxxxxx | ||||||
| * | ||||||
| Xxx X. Xxxxxxxx | ||||||
| CUSIP No. 00000X000 | 13 G | Page 23 of 23 Pages |
| * | ||||||
| Xxxxxxx Sun | ||||||
| * | ||||||
| Xxxxxxx X. Xxxxxxx | ||||||
| * By: | /s/ Xxxxxxx Sun | |
| Xxxxxxx Sun Attorney-in-Fact | ||
