title: Ir genes New tests of familiar arguments.
authors.affiliation: Department of Pathology, Jewish Hospital of St Louis, USA.
authors.forename: J
authors.initials: J
authors.lastname: Kapp
authors.affiliation: Department of Pathology, Jewish Hospital of St Louis, USA.
authors.forename: C
authors.initials: C
authors.lastname: Pierce
authors.affiliation: Department of Microbiology and Immunology, USA.
authors.forename: S
authors.initials: S
authors.lastname: Cullen
authors.affiliation: Department of Genetics, USA.
authors.forename: D
authors.initials: D
authors.lastname: Shreffler
authors.affiliation: Division of Rheumatology, Washington University School of Medicine, St Louis, Missouri, USA.
authors.forename: B
authors.initials: B
authors.lastname: Schwartz