Ultrasound tenosynovitis: A differential feature of patients with seronegative rheumatoid arthritis Santiago Ruta; Einer Sanchez Prado; Facundo Salvatori; Juan Arguello; Darío Aguerre; Sebastián Magri; Rodrigo García Salinas;

Education and Use of Lung Ultrasound in Rheumatology and Pneumology in Spain: A SER-SEPAR Survey Fredeswinda Romero-Bueno; María Jesús Rodríguez-Nieto; Esperanza Naredo;

Cholinergic synovitis: Description of four cases Carlos Guillén Astete; Miguel Zamorano Serrano; Mónica Luque Alarcón;