title: The international society for heart and lung transplantation working formulation for heart transplant rejection: Is it making the grade?
abstract: The cardinal criterion of a classification is utility. It provides one means in an attempt to give order to what would otherwise be a hopeless jumble of disconnected facts. As such it is of the first importance in any field of scholarly endeavor.
authors.affiliation: From the Department of Pathology, Loyola University Medical Center, Maywood, Illinois, USA.
authors.forename: G L
authors.initials: GL
authors.lastname: Winters