Subclinical interstitial lung disease in patients with systemic sclerosis. A pilot study on the role of ultrasound Samuel Reyes-Long; Marwin Gutierrez; Denise Clavijo-Cornejo; Alfonso Alfaro-Rodríguez; Karen González-Sámano; José Luis Cortes-Altamirano; Roberto Muñoz-Louis; Esteban Cruz-Arenas; Katia Camargo; Fernanda Gonzalez; Chiara Bertolazzi;