urn:ddi:int.naddi:1cfb04fa-f7d3-4def-aa37-1b813a520484:1 int.naddi 1cfb04fa-f7d3-4def-aa37-1b813a520484 1 wed_colectica_comments urn:ddi:int.naddi:82167963-283a-4d6a-8350-7fa3081a10d0:1 int.naddi 82167963-283a-4d6a-8350-7fa3081a10d0 1 wed_colectica_comments Comments on Document questionnaires and datasets with DDI