Smith, C. A., Driscoll, D. A., Emanuel, B. S., McDonald-McGinn, D. M., Zackai, E. H., & Sullivan, K. E. (1998). Increased Prevalence of Immunoglobulin A Deficiency in Patients with the Chromosome 22q11.2 Deletion Syndrome (DiGeorge Syndrome/Velocardiofacial Syndrome). American Society for Microbiology.

Smith, Christopher A., Deborah A. Driscoll, Beverly S. Emanuel, Donna M. McDonald-McGinn, Elaine H. Zackai, và Kathleen E. Sullivan. Increased Prevalence of Immunoglobulin A Deficiency in Patients With the Chromosome 22q11.2 Deletion Syndrome (DiGeorge Syndrome/Velocardiofacial Syndrome). American Society for Microbiology, 1998.

Smith, Christopher A., et al. Increased Prevalence of Immunoglobulin A Deficiency in Patients With the Chromosome 22q11.2 Deletion Syndrome (DiGeorge Syndrome/Velocardiofacial Syndrome). American Society for Microbiology, 1998.