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Nature Research (part of Springer Nature), npj Primary Care Respiratory Medicine, 1(28)

DOI: 10.1038/s41533-018-0089-3

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Recruitment of patients with Chronic Obstructive Pulmonary Disease (COPD) from the Clinical Practice Research Datalink (CPRD) for research

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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