TY  - JOUR 
AU  - Pérez Alvarez, Roberto
PY  - 2011
SN  - 1478-6354
UR  - http://hdl.handle.net/20.500.11940/6517
LA  - eng
TI  - Rates of, and risk factors for, severe infections in patients with systemic autoimmune diseases receiving biological agents off-label
DO  - 10.1186/ar3397
T2  - ARTHRITIS RESEARCH & THERAPY
VL  - 13
ER  -