Study limitations:
One of the important limitations of the study is the modest sample size
and the heterogeneity of population group studied. Since a significant
proportion of severe COVID-19 patients succumb to the illness, patients
surviving COVID-19 infection might not reflect the true severity of the
disease leading to a survival bias. Lastly, a longer duration of
follow-up is needed to determine the sequence of evolution of CMR
changes in COVID-19 recovered subjects and long-term prognostic
implications.