[1] Ctr Dis Control & Prevent, Div Healthcare Qual Promot, Atlanta, GA 30333 USA
[2] Ctr Dis Control & Prevent, Div Sci Resources, Atlanta, GA 30333 USA
[3] Natl Inst Hlth Clin Ctr, Bethesda, MD USA
[4] Mayo Clin, Coll Med, Rochester, MN USA
[5] Detroit Med Ctr, Detroit, MI USA
[6] Univ Michigan, Ann Arbor, MI 48109 USA
[7] Henry Ford Hosp, Detroit, MI 48202 USA
[8] William Beaumont Hosp, Royal Oak, MI 48072 USA
[9] Loyola Univ, Ctr Med, Maywood, IL 60153 USA
[10] Duke Univ, Med Ctr, Durham, NC USA
[11] Michigan Dept Community Hlth, Lansing, MI USA