[1] Case Western Reserve NEOUCOM, Dept Genet, Cleveland, OH USA
[2] Case Western Reserve NEOUCOM, Dept Pediat Rheumatol, Cleveland, OH USA
[3] Case Western Reserve Univ, Cleveland, OH 44106 USA
[4] Harvard Univ, Sch Med, Dept Orthopaed, Boston, MA USA
[5] Harvard Univ, Sch Med, Childrens Hosp, Dept Genet, Boston, MA USA
[6] Univ S Carolina, Dept Pathol Microbiol & Immunol, Columbia, SC 29208 USA