(P1668)
Data type
External identifier
Statements
http://www.whocc.no/atcvet/atcvet_index/?code=$1
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Q[ABCDGHJLMNPRSV]([0-9][0-9]([A-Z]([A-Z]([0-9][0-9])?)?)?)?
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Constraints
Q[ABCDGHJLMNPRSV]([0-9][0-9]([A-Z]([A-Z]([0-9][0-9])?)?)?)?
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