The undersigned hereby agree to the joint filing of the Amendment No. 11 to Schedule 13D to which this Agreement is attached.
The undersigned hereby agree to the joint filing of the Amendment No. 11 to Schedule 13D to which this Agreement is attached.
Dated: September 22, 2010
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DISCOVERY GROUP I, LLC
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for itself and as general partner of
DISCOVERY EQUITY PARTNERS, L.P.
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Managing Member
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*By: /s/ ▇▇▇▇ ▇▇▇▇▇▇▇
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Attorney-in-Fact for ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇
Attorney-in-Fact for ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
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