http://www.abms.org, http://www.dabma.org/physicians.asp, http://www.ncbtmb.org/consumers_find_practitioner.php, http://www.association-office.com/abpm/etools/publicdir/search.cfm, http://www.apta.org/AM/Template.cfm?Section=ABPTS&Template=/aptaapps/speccertdirectory/selectccsform.cfm.