Cohen Debbie L, Townsend Raymond R
Department of Medicine, Hypertension Program, University of Pennsylvania, School of Medicine, Philadelphia, PA 19104, USA.
J Clin Hypertens (Greenwich). 2011 Feb;13(2):131-2. doi: 10.1111/j.1751-7176.2010.00403.x. Epub 2010 Dec 17.