Cost evolution of biological drugs in rheumatoid arthritis patients in a tertiary hospital: Influential factors on price Mariángeles González Fernández; Elena Villamañán; Inmaculada Jiménez-Nácher; Francisco Moreno; Chamaida Plasencia; Francisco Gayá; Alicia Herrero; Alejandro Balsa;

Practical aspects of biological throught levels and antidrug antibodies in rheumatoid arthritis and spondyloarthritis José Rosas; María Martín-López; Teresa Otón; Alejandro Balsa; Jaime Calvo-Alén; Raimon Sanmartí; Jesús Tornero; Loreto Carmona;

Clinical course and flare predictors in patients with rheumatoid arthritis in low disease activity and ultrasound remission monitored by ultrasound yearly and on-demand: A prospective 2-year observation study Takeo Abe; Masao Tamura; Kazuyuki Tsuboi; Yuko Minagawa; Kazuteru Noguchi; Chie Ogita; Teppei Hashimoto; Naoto Azuma; Kiyoshi Matsui;