title: Discussion for the Rett Syndrome symposium--the importance of rigorously defining one's level of investigation.
authors.affiliation: Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY 10461.
authors.forename: I
authors.initials: I
authors.lastname: Rapin
mesh_terms: D005260:Female; D006801:Humans; D015518:Rett Syndrome / Q000209:etiology*