title: Invited commentary.
authors.affiliation: Division of Cardiothoracic Surgery, University of Illinois, Chicago, IL 60612-7322, USA. nsnow@uic.edu
authors.forename: Norman J
authors.initials: NJ
authors.lastname: Snow
mesh_terms: D006801:Humans; D013953:Thymus Neoplasms / Q000145:classification / Q000473:pathology* / Q000601:surgery