Dyfyniad APA

Naeije, R., & Barberà, J. A. (2001). Pulmonary hypertension associated with COPD. BioMed Central.

Dyfyniad Arddull Chicago

Naeije, Robert, and Joan A. Barberà. Pulmonary Hypertension Associated With COPD. BioMed Central, 2001.

Dyfyniad MLA

Naeije, Robert, and Joan A. Barberà. Pulmonary Hypertension Associated With COPD. BioMed Central, 2001.

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