Acknowledgments

This work was supported in part by the Regenstrief Institute, as well as grants and contracts from the Regenstrief Foundation, the National Library of Medicine (Contracts NO1-LM-4-3510, N01-LM-6-3546, N01-LM-9-3517, and HHSN276200800006C ), the AHIMA Foundation (Contract FORE-ASPE-2007-5), RTI International (Contract 0-312-0209853), the John A. Hartford Foundation of New York, the Agency for Health Care Policy and Research (AHCPR) (Grants HS 08750 and HS 07719-03), and the Centers for Disease Control and Prevention (Grant and Contracts R13/CCR517099 and H75/CCH520501). 

This work was initiated by and performed under the auspices of the Regenstrief Institute.