1. Bruton OC: Agammaglobulinemia. Pediatrics 1952, 9:722–728.
2. Bruton OC, Apt L, Gitlin D, Janeway C: Absence of serum gamma globulins. Am J Dis Child 1952, 84:632–636.
3. Janeway CA, Apt L, Gitlin D: Agammaglobulinemia. Trans Assoc Am Physicians 1953, 66:200–202.
4. Kulneff K, Pederson KO, Waldenstrom J: Three cases of agammaglobulinemia: a clinical, genetic and physical-chemical analysis of protein metabolism [in German]. Schweiz Med Wochenschr 1955, 85:363–368.
5. Barrett B, Vowiler W: Agammaglobulinemia and hypogammaglobulinemia —the first five years. JAMA 1957, 164:866–870.