RA
METHODS: A recent onset RA cohort was       collected in Heinola in 1973-1975, and another in Jyvaskyla in 1983-1989.
METHODS: A recent onset  @SUBJECT$  @PREDICAT$  @OBJECT$  was       collected in Heinola in 1973-1975, and another in Jyvaskyla in 1983-1989.