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Utility of a simplified ultrasound assessment to assess interstitial pulmonary fibrosis in connective tissue disorders - preliminary results

Marwin Gutierrez*, Fausto Salaffi, Marina Carotti, Marika Tardella, Carlos Pineda, Chiara Bertolazzi, Elisabetta Bichisecchi, Emilio Filippucci and Walter Grassi

Arthritis Research & Therapy 2011, 13:R134  doi:10.1186/ar3446

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