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. 2015 Sep 3;10(9):e0136065. doi: 10.1371/journal.pone.0136065

Fig 3. Forest Plot: polled prevalence of overlap among COPD patients in hospital based studies.

Fig 3

Study 1 = Kauppi et al [13], study 2 = Hardin et al [14], study 3 = Alonso JL et al [15], study 4 = Fabbri et al [22].