Table 1. The comparison between Copyright, Copyleft, and CopyCovid in terms of medical education.

Attributes	Copyright	Copyleft	CopyCovid/Copydemic
Access and Use	Owners only	Free	Free
Reproduce	Owners only	Free	N/A
Create derivative works	Owners only	Free	N/A
Distribution	Owners only	Free	N/A
Ownership	Personal/team ownership	Communal ownership	Connection and collaboration
Sources	Mostly printed materials	Mostly printed materials and software	Mostly Audio-visual materials (Zoom meetings, e-conferences, virtual tours, social media, etc.)
Interaction	Mono-directional	Mono-directional	Multidirectional, active participation (live and on-demand)