1. 1Manchester University Connective Tissue Research Group, Department of Medical Biochemistry, University of Manchester, Lapworth Laboratories, Manchester M13 9PL, U.K.
2. 3Manchester University Connective Tissue Research Group, Department of Medical Biochemistry, University of Manchester, Lapworth Laboratories, Manchester M13 9PL, U.K.
3. 4Manchester University Connective Tissue Research Group, Department of Medical Biochemistry, University of Manchester, Lapworth Laboratories, Manchester M13 9PL, U.K.
4. Department of Surgery, University of Utah, College of Medicine, Salt Lake City, Utah 84112, U.S.A.