f:Observation
value[x]: maximum cardinality of 'value[x]' is 0
hasMember: minimum cardinality of 'hasMember' is 1
f:Observation/f:code
id: maximum cardinality of 'id' 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