Jasin, Hugo E.2015-12-142015-12-141981-03-05https://hdl.handle.net/2152.5/2598Detailed formal protocol with illustrations and extensive bibliography.enGrand RoundsTeaching RoundsArthritis, RheumatoidCryoglobulinsRheumatoid FactorThe role of rheumatoid factors in human diseaseOther42900