Leslie Laurel K, Alexander Mark E, Trikalinos Thomas A, Cohen Joshua T, Parsons Susan K, Newburger Jane W
Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, Mass 02111, USA.
Circ Cardiovasc Qual Outcomes. 2008 Nov;1(2):134-7. doi: 10.1161/CIRCOUTCOMES.108.825232.