Esophageal involvement and interstitial lung disease in mixed connective tissue disease - Fagundes, M. N.; Caleiro, M. T. C.; Navarro-Rodriguez, T.; Baldi, B. G.; Kavakama, J.; Salge, J. M.; Kairalla, Ronaldo Adib; Carvalho, C. R. R. (Respiratory Medicine, 2009)