Subclinical hip involvement in rheumatoid arthritis. An ultrasound assessment Vladimir Aroja Santos; Jessica Gutiérrez; Hugo Sandoval; Araceli Bernal-González; Melisa Valdivieso-Ruiz; Sandra Rodríguez-Flores; Mariana Moreno Ramírez; Aarón Daniel Antonio Arrieta Aguilar; Marwin Gutiérrez; Carlos Pineda;

Impact of ultrasound on the perception of health quality in adult patients with rheumatoid arthritis Luis Javier Cajas Santana; Rafael Barón; Carlos A. Guillén-Astete;

Measurement of overall perceived health using different scales in patients with rheumatoid arthritis: a proposal of a combined scale Eybar Díaz; Javier Cajas; Alex Casallas; Jorge Abella; Renan Morales; Federico Rondón; Gerardo Quintana; Antonio Iglesias; Yimy Medina;