"vieras"
Englanninkielisiä sivuja
http://en.wikipedia.org/wiki/Rheumatoid_arthritis
http://www.nras.org.uk/about_rheumatoid_arthritis/what_is_ra/what_is_ra.aspx
http://en.wikipedia.org/wiki/Rheumatoid_arthritis
http://www.nras.org.uk/about_rheumatoid_arthritis/what_is_ra/what_is_ra.aspx