The feasibility and acceptability of outdoor sessions as an add-on of an online multicomponent program (FIBROWALK) for fibromyalgia: A pilot randomized controlled trial Mayte Serrat; Jaime Navarrete; Carla Rodríguez-Freire; Estíbaliz Royuela-Colomer; Miriam Almirall; Rubén Nieto; Jesús Montero-Marín; Juan V. Luciano; Albert Feliu-Soler;

Fibromyalgia with elevated rheumatoid factor is associated with poor therapeutic response but not with progression to rheumatoid arthritis. Prospective cohort study Freddy Liñán Ponce; Juan Leiva Goicochea; David Sevilla Rodríguez; Elmer Hidalgo Bravo; Ginna Obregón Atanacio; Inés Loyola Macalapú; Paola Jáuregui Rojas; Jackeline Yampufe Canani;

Cognitive dysfunction, depression and serum level of brain-derived neurotrophic factor (BDNF) in Egyptian patients with rheumatoid arthritis Mona I. Nabih; Noha M. Khalil; Olfat Shaker; Mahmoud Ghanema; Sarah A. Hassan;