f:Encounter subject: minimum cardinality of 'subject' is 1 period: minimum cardinality of 'period' is 1 f:Encounter/f:class id: maximum cardinality of 'id' is 1 system: maximum cardinality of 'system' is 1 version: maximum cardinality of 'version' is 1 code: minimum cardinality of 'code' is 1 code: maximum cardinality of 'code' is 1 display: maximum cardinality of 'display' is 1 userSelected: maximum cardinality of 'userSelected' is 1 f:Encounter/f:period id: maximum cardinality of 'id' is 1 start: minimum cardinality of 'start' is 1 start: maximum cardinality of 'start' is 1 end: maximum cardinality of 'end' is 1