Division of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, The University of Arizona, Tucson, Arizona, USA
Received 18 November, 2009
Revised 12 January, 2010
Accepted 22 April, 2010
Correspondence to Eyal Shahar, MD, MPH, Professor, Division of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, The University of Arizona, 1295 N. Martin Ave., Tucson, AZ 85724, USA Tel: +520 626 8025; fax: +520 626 2767; e-mail: [email protected]
doi: 10.2459/JCM.0b013e32833b9088