- Correspondence to: Professeur A Brice INSERM U679, Groupe Hospitalier Pitié-Salpêtrière, 47 boulevard de l’hôpital, 75013 Paris, France;
- Received May 26, 2005
- Accepted July 19, 2005
- Revised July 18, 2005
- First published July 31, 2005.
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