Institut National de la Santé et de la Recherche Médicale U507 and Division of Nephrology, Necker Hospital, Paris, France.
Correspondence to Dr. Tilman B. Drüeke, Unité 507 de l'Inserm, Hôpital Necker, 161 Rue de Sèvres, 75743 Paris Cedex 15, France. Phone: + 33 1 44 49 52 33 or + 33 1 44 49 52 43; Fax: + 33 1 45 66 51 33; E-mail: [email protected]
Received June 23, 1999. Accepted October 26, 1999.
