Myron Genel1, Joe Leigh Simpson2, Albert de la Chapelle3. 1. Yale Child Health Research Center, Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut. 2. Herbert Wertheim College of Medicine, Florida International University, Miami3March of Dimes Foundation, White Plains, New York, New York. 3. Human Cancer Genetics Program, Comprehensive Cancer Center, Ohio State University, Columbus.