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Physician Specialty as a Source of Heterogeneity in the Care of Patients With COPDPaladini, Luciana; Hodder, Rick; Bellia, Vincenzo; Marchionni, Niccolò; Di Bari, Mauro; Cecchini, Isabella; Pistelli, Riccardo; Antonelli-Incalzi, Raffaele · Chest · 2011