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Ring 20 chromosome phenotype.
  1. B Porfirio,
  2. M G Valorani,
  3. A Giannotti,
  4. G Sabetta,
  5. B Dallapiccola


    A baby with a 46,XY,r(20) karyotype is described. The distinguishing features of this rare chromosome anomaly are analysed in the light of the suggested r(20) syndrome.

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