01 December 2021
: Case report 
Progressive Pulmonary Fibrosis After Non-Critical COVID-19: A Case Report
Unusual clinical course
Jedediah J. Doane1ABDEF*, Kellen S. Hirsch1ABDEF, Justine O. Baldwin2C, Mark M. Wurfel1E, Sudhakar N. Pipavath3CDE, T. Eoin West1ADEFDOI: 10.12659/AJCR.933458
Am J Case Rep 2021; 22:e933458
Figure 1. Patient’s oxygen requirement throughout COVID-19-associated pulmonary fibrosis progression. Day 1 represents time at which a SARSCoV-2 nasopharyngeal PCR test was positive. Oxygen requirement quantified by liters per minute on either nasal cannula or high-flow nasal cannula. Data not shown include pressures during noninvasive positive-pressure ventilation and percent of oxygen delivered.