1. Departments of Orthopedics, Periodontics, and Biochemistry, University of Texas Health Science Center (Z.S., H.E., V.L.S., V.B., R.R.H., D.L., D.D.D., B.D.B.), San Antonio, Texas 78229
2. Department of Periodontics, Hebrew University Hadassah (Z.S.), Jerusalem, Israel 91-010
3. Wilford Hall Medical Center (H.E.), Lackland Air Force Base, Texas 78236
4. Department of Food and Nutrition Sciences, Utah State University (D.L.), Logan, Utah 84322