Patients receiving nonsteroidal antiinflammatory drugs (NSAIDs), corticosteroids (<= 10 mg per day), or both are eligible if the dosage has been stable for at least four weeks before treatment and remained so throughout the study and follow-up period (the use of narcotics for pain flares is allowed). [clinicaltrials_resource:29d3363f9dda597455df7f1d8d8e92e8]

Patients receiving nonsteroidal antiinflammatory drugs (NSAIDs), corticosteroids (<= 10 mg per day), or both are eligible if the dosage has been stable for at least four weeks before treatment and remained so throughout the study and follow-up period (the use of narcotics for pain flares is allowed). [clinicaltrials_resource:29d3363f9dda597455df7f1d8d8e92e8]