Zhang Nanhua, Baker Harolyn W, Elliott Michael R
Nanhua Zhang is with Department of Epidemiology and Biostatistics, University of South Florida, Tampa. Harolyn W. Baker is with MPRO, Michigan's Quality Improvement Organization, Famington Hills, MI. Michael R. Elliott is with Department of Biostatistics, University of Michigan, Ann Arbor.
Am J Public Health. 2013 Oct;103(10):e10. doi: 10.2105/AJPH.2013.301524. Epub 2013 Aug 15.