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**WARRANT      CLARIFICATION AGREEMENT **

**THIS      WARRANT CLARIFICATION AGREEMENT**

**WHEREAS,**

**WHEREAS,**

**WHEREAS,**

**NOW,      THEREFORE,**

|   |   | “Furthermore,                if the Company is unable to deliver any securities pursuant to the                exercise of a Warrant as a result of the foregoing situations, the                Company                will have no obligation, under any circumstance, to pay such registered                holder any cash or other consideration or otherwise ‘net cash settle’ the                Warrant.” |
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**IN      WITNESS WHEREOF**

|   | ECHO                HEALTHCARE ACQUISITION CORP.                                                                                                                                                                                                                                                            |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                                                                                        |
|   | By:                /s/ Gene E.                Burleson                                                                  |
|   |                       Gene E. Burleson                                                                                                                                                                                                                                        |
|   |                       Chief Executive Officer                                                                                                                                                                                                                                 |
|   |                                                                                                                                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                                                                                        |
|   | CORPORATE                STOCK TRANSFER, INC.                                                                                                                                                                                                                                                               |
|   |                                                                                                                                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                                                                                        |
|   |                                                                                                                                                                                                                                                                                                        |
|   | By:                /s/                Carolyn                Bell                                        |
|   |                       Name: Carolyn                Bell                                                                                                                                                                                                                       |
|   |                      Title: President                                                                                                                                                                                                                                              |