[Maintenance treatment of Wilson's disease with oral zinc. Apropos of a child treated for 4 years]. / Traitement d'entretien de la maladie de Wilson par le zinc per os. A propos d'un enfant traité pendant 4 ans.

A 13 year-old boy with Wilson's disease was treated with zinc sulphate per os for 4 years. This treatment, which was effective and non toxic, could substitute for penicillamine as long term treatment of Wilson's disease.