1. Babbitt, D. P., Dobbs, J., Good, T.: Multiple bladder diverticula in Williams' syndrome. Presented at the 19th annual meeting of the Society for Pediatric Radiology. Washington, D. C., September 19?20, 1976
2. Boechat, M. I., Lebowitz, R. L.: Diverticula of the bladder in children. Pediatr. Radiol.7, 22 (1978)
3. Cacciarelli, A. A., Lucas, B., McAlister, W. H.: Multichambered bladder abnormalities. Am. J. Radiol.126, 642 (1976)
4. Taybi, H.: Williams syndrome. In: Radiology of Syndromes, 280?282, Chicago: Year Book Medical Publishers 1975
5. Jones, K. L., Smith, D. W.: The Williams elfin facies syndrome. J. Pediatr.86, 718 (1975)