SAT0013 Seronegative b27 negative undifferentiated oligoarthritis: large follow-up study of 40 cases

IA Ferraz-Amaro, A Arteaga, E Trujillo, A Alvarez, JJ Bethancourt, S Bustabad, F Diaz-Gonzalez, M Gantes, T Gonzalez
2001 Speaker abstracts 2001   unpublished
doi:10.1136/annrheumdis-2001.365 fatcat:zyvyu4ekz5d63esjqqp7cwmane