[1] THOMAS JEFFERSON UNIV,JEFFERSON INST MOLEC MED,DEPT BIOCHEM & MOLEC BIOL,PHILADELPHIA,PA 19107
[2] UNIV OULU,DEPT MED BIOCHEM,SF-90230 OULU,FINLAND
[3] UNIV OULU,BIOCTR,COLLAGEN RES UNIT,SF-90230 OULU,FINLAND
[4] UNIV OULU,DEPT BIOCHEM,SF-90570 OULU,FINLAND