extension shown: fhir [x]

Group.member.period

Defined in the fhir.schema.org extension.
Canonical URL: http://schema.org/Group.member.period

Thing > Property > Group.member.period

The period that the member was in the group, if known.

Usage: Fewer than 10 domains
Values expected to be one of these types
Period
Used on these types
Group

Schema Version 2.2