BALTIMORE, Maryland, Sept. 7 (TNSres) -- Johns Hopkins University's Bloomberg School of Public Health issued the following news release: * * * Findings suggest high risk of erroneous blood pressure readings for 6.7 percent of the U.S. adult population * * * Over-the-counter blood pressure measuring devices offer a simple, affordable way for people to track hypertension at home, but the standard arm-size ranges for these devices won't appropriately fit millions of U.S. consumers, according to  more