<country>¶
| Appears in | Frequency | 
|---|---|
| Zero or once | |
| Zero or once | 
Identifies the country in an address. It is not a mandatory element in affiliation.
The attribute @country is not mandatory, but when used it must be completed using the two letter uppercase country codes from the ISO 3166 Standard.
Example:
...
<aff id="aff01">
  ...
  <country country="CA">Canada</country>
   ...
</aff>
...