f:List identifier: maximum cardinality of 'identifier' is 1 title: maximum cardinality of 'title' is 0 code: minimum cardinality of 'code' is 1 subject: minimum cardinality of 'subject' is 1 encounter: maximum cardinality of 'encounter' is 0 date: minimum cardinality of 'date' is 1 source: minimum cardinality of 'source' is 1 orderedBy: minimum cardinality of 'orderedBy' is 1 f:List/f:entry flag: minimum cardinality of 'flag' is 1