Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation 825 NE 13th Street, Oklahoma City, Oklahoma 73104-5005, USA.|Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation 825 NE 13th Street, Oklahoma City, Oklahoma 73104-5005, USA.|Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation 825 NE 13th Street, Oklahoma City, Oklahoma 73104-5005, USA.