f:Observation subject: minimum cardinality of 'subject' is 1 effective[x]: minimum cardinality of 'effective[x]' is 1 specimen: minimum cardinality of 'specimen' is 1 f:Observation/f:identifier id: maximum cardinality of 'id' is 1 use: maximum cardinality of 'use' is 1 type: maximum cardinality of 'type' is 1 system: maximum cardinality of 'system' is 1 value: maximum cardinality of 'value' is 1 period: maximum cardinality of 'period' is 1 assigner: maximum cardinality of 'assigner' is 1 f:Observation/f:category id: maximum cardinality of 'id' is 1 text: maximum cardinality of 'text' is 1 f:Observation/f:code id: maximum cardinality of 'id' is 1 coding: minimum cardinality of 'coding' is 1 text: minimum cardinality of 'text' is 1 text: maximum cardinality of 'text' is 1 f:Observation/f:code/f:coding id: maximum cardinality of 'id' is 1 system: maximum cardinality of 'system' is 1 version: maximum cardinality of 'version' is 1 code: maximum cardinality of 'code' is 1 display: maximum cardinality of 'display' is 1 userSelected: maximum cardinality of 'userSelected' is 1 f:Observation/f:note id: maximum cardinality of 'id' is 1 author[x]: maximum cardinality of 'author[x]' is 1 time: maximum cardinality of 'time' is 1 text: minimum cardinality of 'text' is 1 text: maximum cardinality of 'text' is 1