1. Holsti Ö, Rantasalo V (1936) On the occurrence of arthritis in Finland. Acta Med Scand 88:181–195
2. Laine V, Vainio K (1964) Orthopedic surgery in rheumatoid arthritis. Bull Rheum Dis 15:360–361
3. Vainio K (1989) Vainio arthroplasty of the metacarpophalangeal joints in rheumatoid arthritis. Hand Surg Am 14(2 Pt 2):367–368
4. Haapasaari J, Kautiainen H, Hannula S, Pohjankoski H, Hakala M (2002) Good results from combining etanercept to prevailing DMARD therapy in refractory juvenile idiopathic arthritis. Clin Exp Rheumatol 20:867–870
5. Savolainen HA, Isomäki HA (1993) Decrease in the number of deaths from secondary amyloidosis in patients with juvenile rheumatoid arthritis. J Rheumatol 20:1201–1203