MRI of the arthritic small joints: comparison of extremity MRI (0.2 T) vs. high-field MRI (1.5 T). - Savnik,A.; Malmskov,H.; Thomsen,H.S.; Bretlau,T.; Graff,L.B.; Nielsen,H.; Danneskiold-Samsoe,B.; Boesen,J.; Bliddal,H. (Eur Radiol, 2001)