| JCA | juvenile chronic arthritis |
|---|---|
| JRA | juvenile rheumatoid arthritis |
| MAA | macroaggregated albumin; Medical Assistance for the Aged; melanoma-associated antigen; moderate apla... |
| MACTAR | McMaster-Toronto arthritis and rehumatism [questionnaire] |
| OMERACT | Outcome Measures in Rheumatoid Arthritis Clinical Trial |