Exploration of Cardiology

Variable	Mild	Moderate	Severe
Diffuse increase in density	5	10	15
Extensive peri-hilar haze	4	8	12
Peribronchial cuffs	4	8	12
Widening interlobar fissures	4	8	12
Subpleural effusion	5	10
Blurred hilar vessels	3	6	9
Increased density of hilar vessels	2	4	6
Enlarged hilar vessels	1	2	3
Micronodules	4	8
Kerley A lines	4	8
Kerley B lines	4	8
Kerley C lines	4	8

Declarations

Author contributions

MART: Writing—original draft, Conceptualization, Validation, Supervision. NMdQ: Investigation, Visualization. Both authors read and approved the submitted version.

Conflicts of interest

Both authors declare that they have no conflicts of interest.

Ethical approval

Not applicable.

Consent to participate

Not applicable.

Consent to publication

Not applicable.

Availability of data and materials

Not applicable.

Funding

Not applicable.

Copyright

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