[1] Denver Reg Council Govt, 1001 17th St,Suite 700, Denver, CO 80202 USA
[2] Univ Colorado, Dept Emergency Med, Denver Hlth, Sch Med, 601 Broadway, Denver, CO 80204 USA
[3] Amyotroph Lateral Sclerosis Assoc Arkansas Chapter, Rogers, AR USA
[4] Aging & Disabil Serv Multnomah Cty, Portland, OR USA