1. Pediatric and Reproductive Endocrinology Branch (K.P.), National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
2. National Institute of Child Health and Human Development and Clinical Neurocardiology Section (K.P.), National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland
3. Laboratory of Genetics (M.P.), National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland 20892-1583
4. Laboratory of Neuromorphology, Semmelweis University, 1094 Budapest, Hungary (M.P.)