1. Department of Pediatrics, Kansai Medical University, Fumizonocho 1, Moriguchi, Osaka 570, Japan
2. Department of Ophthalmology, Kansai Medical University, Fumizonocho 1, Moriguchi, Osaka 570, Japan
3. Department of Otolaryngology, Kansai Medical University, Fumizonocho 1, Moriguchi, Osaka 570, Japan
4. Department of Radiology, Kansai Medical University, Fumizonocho 1, Moriguchi, Osaka 570, Japan
5. Clinical Pathology, Kansai Medical University, Fumizonocho 1, Moriguchi, Osaka 570, Japan