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;

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;

Right ventriculoarterial coupling as a marker of subclinical myocardial damage in rheumatoid arthritis Tomás Miranda-Aquino; Diego Alejandro Ramos-Aguas; Silvia Esmeralda Pérez-Topete; María del Socorro Cepeda-Rocha; Xochitl Citlalli Gómez-Gómez; Daniel Ochoa-Castillo; Sergio Cerpa-Cruz; Verónica González-Díaz; Christian González-Padilla; Jorge Eduardo Hernández-del Río;