Pemoline in overactive mentally handicapped children.

brothers and fathers between the two groups was to the advantage of the patients with 47,XXY and not to the patients of 46,XY. Finally, it should be mentioned that to secure an unbiased attitude on the part of the examiner the psychological investigation was carried out blindly, the psychologist possessing knowledge of neither anaznnestic data, psychiatric evaluation, or results of physical and cytogenetic examinations.