AGREEMENT
Exhibit 99.1
AGREEMENT
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.
| Dated: February 11, 2011 | VENROCK ASSOCIATES By: A General Partner |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
| VENROCK ASSOCIATES II, L.P. By: A General Partner |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
| VENROCK ENTREPRENEURS FUND, L.P. By its General Partner Venrock Management, LLC |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
| VR MANAGEMENT, LLC |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
| VENROCK MANAGEMENT, LLC |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
| VENROCK HEALTHCARE CAPITAL PARTNERS, L.P. By its General Partner VHCP Management, LLC |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
| VHCP CO-INVESTMENT HOLDINGS, LLC By its General Partner VHCP Management, LLC |
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| By: | /s/ Xxxxx X. Xxxxx | |||
| Authorized Signatory | ||||
