(Q74631253)
Statements
ACR and EULAR improvement criteria have comparable validity in rheumatoid arthritis trials. American College of Rheumatology European League of Associations for Rheumatology (English)
van Gestel AM
Anderson JJ
van Riel PL
Boers M
Haagsma CJ
Rich B
Wells G
Lange ML
1 March 1999