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Fig. 1 | BMC Rheumatology

Fig. 1

From: A case of localized tracheobronchial relapsing polychondritis with positive matrilin-1 staining

Fig. 1

Lung function test during the clinical course. Lung function test 7 months before (a) and at the time of consultation (b). Seven months before the consultation, the flow volume curve was almost normal except for a slight downward convex in the latter half of the expiratory phase (a). At the time of the consultation, both peak expiratory flow (PEF) and forced expiratory flow in 1 s (FEV1) were markedly decreased (b)

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