[1] TEMPLE UNIV, HLTH SCI CTR,SCH MED,DEPT PEDIAT, IMMUNOL & RHEUMATOL SECT, PHILADELPHIA, PA 19140 USA
[2] TEMPLE UNIV, HLTH SCI CTR, SCH MED, DEPT RADIOL, PHILADELPHIA, PA 19140 USA
[3] TEMPLE UNIV, HLTH SCI CTR,SCH MED,DEPT INTERNAL MED, RHEUMATOL SECT, PHILADELPHIA, PA 19140 USA
[4] ALBERT EINSTEIN MED CTR, NO DIV, DEPT INTERNAL MED, RHEUMATOL SECT, PHILADELPHIA, PA 19141 USA
[5] UNIV PENN, SCH MED, DEPT INTERNAL MED, RHEUMATOL SECT, PHILADELPHIA, PA 19104 USA
[6] VET ADM HOSP, PHILADELPHIA, PA USA