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Fig. 2 | Allergy, Asthma & Clinical Immunology

Fig. 2

From: Asthma and COVID-19: a systematic review

Fig. 2

Graphic representation of the geographical origin of the studies analyzed in the systematic review (a) and the proportion of patients with previous diagnosis of asthma among COVID-19 patients included in studies citing asthma (b) and among all COVID-19 patients described up to June 30, 2020 (c)

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