1. American Bar Association 2009 National lawyer population by state 1989 - 2008 http://www.americanbar.org/content/dam/aba/migrated/marketresearch/PublicDocuments/lawyer_count_by_state_1989_2008.authcheckdam.pdf
2. American Bar Association 2012 National lawyer population by state 2002 - 2012 http://www.americanbar.org/content/dam/aba/migrated/marketresearch/PublicDocuments/2002_2012natllawyerstate.authcheckdam.pdf
3. American Medical Association 2012a H-435.959 liability reform https://ssl3.ama-assn.org/apps/ecomm/PolicyFinderForm.pl?site=www.ama-assn.org&uri=%2fresources%2fdoc%2fPolicyFinder%2fpolicyfiles%2fHnE%2fH-435.959.HTM
4. American Medical Association 2012b Medical Liability Reform - Now http://www.ama-assn.org/resources/doc/arc/mlr-now.pdf
5. The effect of malpractice liability on the delivery of health care;Baicker;Forum for Health Economics & Policy,2005