urn:ddi:de.dezim:28d03856-64cb-42d0-8b42-00a5eb05a750:1 de.dezim 28d03856-64cb-42d0-8b42-00a5eb05a750 1 extension:ShouldCalculateFrequenciesForValidValues True extension:ShouldCalculateFrequenciesForInvalidValues True el-masri@dezim-institut.de v2 hlt0023 Verschlimmerung Beschwerden während Covid-19-Pandemie: Ja/nein Aggravation health problems during Covid-19 pandemic: yes/no de.dezim cc0223cb-521b-43be-ace5-3a27d7d94008 1 CodeList