Comment on

• Spectrum of clinical features associated with interstitial chromosome 22q11 deletions: a European collaborative study.

  Ryan AK, Goodship JA, Wilson DI, Philip N, Levy A, Seidel H, Schuffenhauer S, Oechsler H, Belohradsky B, Prieur M, Aurias A, Raymond FL, Clayton-Smith J, Hatchwell E, McKeown C, Beemer FA, Dallapiccola B, Novelli G, Hurst JA, Ignatius J, Green AJ, Winter RM, Brueton L, Brøndum-Nielsen K, Scambler PJ, et al. Ryan AK, et al. J Med Genet. 1997 Oct;34(10):798-804. doi: 10.1136/jmg.34.10.798. J Med Genet. 1997. PMID: 9350810 Free PMC article.