الفهرس 
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Abstract
The present study has been designed as observational follow up that was carried out at COVID-19 isolation department of Suez Canal University hospitals and pulmonology outpatient clinic. A total of 216 survivors of COVID-19 pneumonia have been included into the study. The study was conducted among patients who were presented with a primary diagnosis of COVID-19 pneumonia and requiring admission to COVID-19 isolation department at Suez Canal University hos before admission and oxygen saturation at time of discharge, initial pulmonary function75