urn:ddi:int.naddi:c9191926-fb2e-4779-b973-eab34679a0b2:2 int.naddi c9191926-fb2e-4779-b973-eab34679a0b2 2 jeremy 2016 data demo_attended Have you attended a NADDI conference previously? int.naddi 4f1309e0-3b43-4b09-9d9e-c72271e81ddd 2 CodeList