- Correspondence to: Dr Julie Steffann Service de génétique médicale et Unité INSERM 393, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75743 Paris Cedex 15, France;
- Received February 22, 2005
- Accepted August 10, 2005
- Revised August 4, 2005
- First published September 9, 2005.
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