“ Effectiveness of Radiation Synovectomy With Samarium-153 Particulate Hydroxyapatite in Rheumatoid Arthritis Patients With Knee Synovitis: A Controlled Randomized Double-Blind Trial ”. Clinics, vol. 64, no. 12, Jan. 2009, pp. 1187-93, https://doi.org/10.1590/S1807-59322009001200008.