**Exhibit 10.90**

**SYSTRANFinancial Services Corporation**

*a subsidiary of Textron Financial Corporation*

**BILLS, ACCOUNTS, AND ACCOUNTS RECEIVABLE VALIDITYGUARANTY**

This Bills, Accounts and Accounts Receivable ValidityGuaranty (this “Agreement”) is executed as of February 8, 2007, by theundersigned guarantor (“Guarantor”) in favor of Systran Financial ServicesCorporation, a subsidiary of Textron Financial Corporation, and its affiliates(“SYSTRAN”).  Capitalized terms notdefined herein shall have the respective meanings set forth in the FactoringAgreement (as hereinafter defined).

**RECITALS**

A.            SYSTRANand Crdentia Corp., Health Industry Professionals, L.L.C., Mint MedicalStaffing Odessa, LP, Prime Staff, Inc., Staff Search Acquisition Corp., Arizona Home Health Care/Private Duty, Inc.,Care Pros Staffing, Inc., Baker Anderson Christie, Inc., New Age Staffing,Inc., PSR Nurses, Ltd., and Nurses Network, Inc. (individually andcollectively “Customer”) have entered or will enter into a Factoring Agreement(each such agreement, as amended or modified from time to time, individuallyand collectively referred to as the “Factoring Agreement”), pursuant to whichSYSTRAN will provide accounts receivable financing to Customer (the “Financing”);and

B.            TheFinancing is or will be secured by, among other things, all Bills, accounts andaccounts receivable in which Customer now or hereafter has rights.

**AGREEMENTS**

With knowledge that SYSTRAN will provide Financing toCustomer in reliance upon the existence of this Agreement, Guarantor agreeswith SYSTRAN as follows:

1.             Representation,Warranty, and Guaranty.  Guarantorrepresents, warrants and guarantees to SYSTRAN that:

a.             Each of Customer’sBills submitted to SYSTRAN will:  (i) begenuine, complete and, in all other respects, what it purports to be; (ii) befor an undisputed claim in the amount that Customer indicates to be owing toCustomer; (iii) be free and clear of liens, claims and security interests ofany party other than SYSTRAN; (iv) have arisen from the sale and delivery ofgoods or from services rendered by Customer in the ordinary course of Customer’sbusiness; (v) not be subject to any offset or defense, or be contingent uponthe fulfillment of any condition; (vi) not involve an account debtor thatcontrols, is controlled by, or is under common control with Customer, or thatis an employee, agent, owner or shareholder of Customer; (vi) not constitute “chattelpaper” or an “instrument”, as those terms are defined in the Uniform CommercialCode.

b.             All cash, drafts andother revenues received by Customer from any source and for any reason will beforwarded to SYSTRAN in accordance with the terms of the Factoring Agreement.

c.             Guarantorhereby unconditionally guarantees to SYSTRAN the full and prompt performance ofall obligations of Customer to SYSTRAN required under the Factoring Agreementto the extent such obligations arise from or are related to any and all acts offraud and/or misrepresentation performed by any Guarantor, any Customer, itsofficers, directors, employees, affiliates, or any other person or entityacting for or on behalf of any Customer in any capacity.  Fraud in this context has the meaning ofwillful intent to mislead, misrepresent facts, and/or falsify documents thatresults in damages to SYSTRAN.

Guarantorwill reimburse SYSTRAN, upon demand, for all loss and damage which SYSTRANincurs as the result of the breach of any of the warranties of Guarantor setforth in Section 1 (a) through (c) of this

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Agreementabove.  As to claims made by SYSTRAN, Guarantorwill be permitted to seek relief for defense and other costs fromindemnification provisions in Customer’s bylaws and from directors’ andofficers’ liability insurance or otherwise available at law or equity,provided, however, each Guarantor hereby subordinates all such rights ofrecovery to SYSTRAN until SYSTRAN is irrevocably paid in full for all Customerobligations under the Financing.

2.             ContinuingNature of Agreement.  This Agreementis a continuing agreement and shall apply without regard to the form or theamount of the Bills, accounts or accounts receivable in existence at anytime.  Guarantor may prospectively revokethis Agreement by sending written notice to SYSTRAN, by certified mail returnreceipt requested, at the address for SYSTRAN specified below (the “RevocationNotice”).  The revocation of thisAgreement shall not be effective with respect to any Bills, accounts oraccounts receivable submitted to SYSTRAN by Customer on or prior to the dateoccurring ninety (90) days after SYSTRAN’s receipt of the Revocation Notice.

3.             AbsoluteNature of Agreement.  Therepresentations, warranties and guarantees of Guarantor under this Agreementare absolute and unconditional. Guarantor shall not be released from such representations, warranties orguarantees for any reason, nor shall such representations, warranties orguarantees be reduced, diminished or discharged for any reason, including:

a.             Modifications andIndulgences.  Any modification,renewal or alteration of the Factoring Agreement, any other agreementpertaining to the Factoring or any Bills, accounts or accounts receivable, orany indulgence, adjustment, preference, extension or compromise made by SYSTRANin favor of Customer or any account debtor associated with any Bills, accounts oraccounts receivable (an “Account Debtor”).

b.             Composition ofCustomer or Guarantor.  Any sale,lease or other disposition of any of the assets of Customer or Guarantor; anyreorganization of, or change in the composition of the shareholders, partnersor members of, Customer or Guarantor; or any termination of, or other changein, the relationship between Customer and Guarantor.

c.             Audit of Customer.  The failure of any audit of the accounts,inventory, revenues or the books and records of Customer to discloseirregularities or wrong-doing by Customer.

4.             Waivers.  Guarantor waives:

a.             Action AgainstOthers.  Any right to require SYSTRANto:  institute suit or exhaust remediesagainst Customer or any Account Debtor; enforce SYSTRAN’s rights in anysecurity which is at any time given to secure any obligations of Customer owingto SYSTRAN; join Customer or any other party in any action seeking to enforcethis Agreement; or exhaust any other remedies available to SYSTRAN or resort toany other means of obtaining payment or performance under the FactoringAgreement.

b.             Notices.  Notice of the amount of credit extended bySYSTRAN to Customer at any time, whether primary or secondary; notice of themodification or extension of any Factoring or Bills, accounts or accountsreceivable; notice of a default or other non-performance by Customer inconnection with the Factoring Agreement or by an Account Debtor in connectionwith a Bill, account or account receivable; notice of the acceptance of thisAgreement by SYSTRAN; demand and presentation for payment upon Customer, anyAccount Debtor or any other party liable for any Bill, account or accountreceivable; protest, notice of protest and diligence of bringing suit againstCustomer, any Account Debtor or any other party; and any other action orinaction on the part of SYSTRAN in connection with the Factoring Agreement orany Bill, account or account receivable.

5.             GoverningLaw.  **ThisAgreement shall be deemed to be a contract under the laws of the State ofOregon and for all purposes shall be governed by and construed in accordancewith the laws of that state.  Customerirrevocably agrees that any legal action or proceeding brought by or againstCustomer with respect to the Agreement shall be brought in the courts of the Stateof Oregon or in the U.S. District Court for the District of Oregon.  Customer consents to the jurisdiction**

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**of such courts and that the venue for any suchaction shall be the County of Multnomah. This provision shall not limit the right of SYSTRAN to bring suchactions or proceedings against Customer in the court of such other states orjurisdictions where Customer may be subject to jurisdiction.**

6.             Jury Trial Waiver.  In recognition of the higher costs and delaywhich may result from a jury trial, the parties waive any right to trial byjury of any claim, demand, action or cause of action (A) arising hereunder, or(B) in any way connected with or related or incidental to the dealings of theparties hereto or any of them with respect hereto, in each case whether nowexisting or hereafter arising, and whether sounding in contract or tort orotherwise; and each party further waives any right to consolidate any suchaction in which a jury trial has been waived with any other action in which ajury trial cannot be or has not been waived; and each party hereby agrees andconsents that any such claim, demand, action or cause of action shall bedecided by court trial without a jury, and that any party hereto may file anoriginal counterpart or a copy of this section with any court as writtenevidence of the consent of the parties hereto to the waiver of their right totrial by jury.

10.           CreditInformation. By signing this guaranty, Guarantor authorizes SYSTRAN, or anyof its affiliates, to obtain credit bureau reports, and make other creditinquiries that SYSTRAN determines are necessary.  On Guarantor’s written request, SYSTRAN willinform Guarantor whether it has requested a consumer credit report and the nameand address of any consumer credit reporting agency that published areport.  Guarantor acknowledges thatwithout further notice SYSTRAN may use or request additional credit bureaureports to update our information so long as Guarantor obligations to SYSTRANare outstanding.

Dated and effective February 8, 2007
| By:             |   |   |   | By:             | /s/ James J. TerBeest |
|-----------------|--------|--------|--------|-----------------|-----------------------|
| Print Name:     |   |   |   | Print Name:     | James TerBeest        |
| Print Title:    |   |   |   | Print Title:    | Individual            |
| Home Address:   |   |   |   | Home Address:   |                  |
|            |   |   |   |            |
| Home Telephone: |   |   |   | Home Telephone: |                  |
|                 |        |        |        |                 |                       |  |  |  |  |  |

 
|            | **Address for Notices to Systran:**         |
|------------|---------------------------------------------|
| ** ** | ** **                                  |
| ** ** | **Systran  Financial Services Corporation** |
|       | **Attn:  Credit Manager**                   |
| ** ** | **4949 SW  Meadows Road, Suite 500**        |
| ** ** | **Lake  Oswego, Oregon 97035**              |
| ** ** | **P.O.  Box 3289**                          |
| ** ** | **Portland,  OR 97208**                     |

 

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