Department of Arthritis and Immunology, Oklahoma Medical Research Foundation, 825 NE 13 Street, RP Rm 461 MS: 58, Oklahoma City, OK 73104, USA. knowltonn@omrf.ouhsc.edu <knowltonn@omrf.ouhsc.edu>|Department of Arthritis and Immunology, Oklahoma Medical Research Foundation, 825 NE 13 Street, RP Rm 461 MS: 58, Oklahoma City, OK 73104, USA. knowltonn@omrf.ouhsc.edu <knowltonn@omrf.ouhsc.edu>|Department of Arthritis and Immunology, Oklahoma Medical Research Foundation, 825 NE 13 Street, RP Rm 461 MS: 58, Oklahoma City, OK 73104, USA. knowltonn@omrf.ouhsc.edu <knowltonn@omrf.ouhsc.edu>