title: Less urgent (UNOS 1B and 2) listings in pediatric heart transplantation: a vanishing breed.
authors.forename: William T
authors.initials: WT
authors.lastname: Mahle
authors.forename: Steven A
authors.initials: SA
authors.lastname: Webber
authors.forename: Wida S
authors.initials: WS
authors.lastname: Cherikh
authors.forename: Leah B
authors.initials: LB
authors.lastname: Edwards
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D016027:Heart Transplantation / Q000639:trends*; D006801:Humans; D007223:Infant; D012307:Risk Factors; D012720:Severity of Illness Index; D009927:Tissue and Organ Procurement / Q000145:classification*; D014481:United States; D014850:Waiting Lists / Q000401:mortality