urn:ddi:int.example:98c92442-3141-4421-8240-90f26aa17367:2 int.example 98c92442-3141-4421-8240-90f26aa17367 2 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True fdz@dezim-institut.de lif0039x07 lif0039x07 lif0039x07 Schwierig Besuch Mutter: Andere Gründe Difficult to visit mother: other reasons Difficult to visit mother: other reasons int.example d4107808-c0f4-4c39-a124-61639ba2307e 1 QuestionItem int.example 15d7f20a-4feb-4e61-b759-5e00a463fcc6 1 CodeList