Abstract
No Abstract Available.
*This work was supported by Grant-in-aid No. DE-01650-04 of the National Institute of Dental Research, Bethesda, Maryland.
From the School of Dentistry, Department of Radiology of the Center for the Health Sciences, University of California at Los Angeles, and Saint John's Hospital Research Foundation, Santa Monica, California.
Based on a thesis submitted for the degree Doctor of Philosophy, Jikeikai University School of Medicine, Tokyo, Japan.