External validity of the pediatric cardiac quality of life inventory

Bradley S. Marino, Dennis Drotar, Amy Cassedy, Richard Davis, Ryan S. Tomlinson, Katelyn Mellion, Kathleen Mussatto, Lynn Mahony, Jane W. Newburger, Elizabeth Tong, Mitchell I. Cohen, Mark A. Helfaer, Anne E. Kazak, Jo Wray, Gil Wernovsky, Judy A. Shea, Richard Ittenbach