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Pragmatic and Observational Research


Archive: Volume 4, 2013

Protocol for the asthma tools study: a pragmatic practice-based research network trial

Yawn BP, Bertram S, Kurland M, Wollan P, Graham D, Littlefield D, Smail C, Pace W

Pragmatic and Observational Research 2013, 4:7-18

Published Date: 4 June 2013

Exacerbations in the pre- and post-COPD diagnosis periods

Yawn BP, Wollan P, Rank M

Pragmatic and Observational Research 2013, 4:1-6

Published Date: 2 May 2013