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;

Residence at high altitude as a risk factor for high probability of pulmonary hypertension in patients with systemic sclerosis: A case¿control study Luis Javier Cajas; Julia Recalde Reyes; Javier Alejandro Correa; Wilder Carvajal; Carolina Torres; José S. Cortés;

Evaluation of the efficacy and safety of gravitational therapy in a cohort of patients with systemic sclerosis Luisa Fernanda Servioli; Eugenia Isasi; Alejandra Pérez; Silvia Pouquette; María Eloísa Isasi;