Jonasjohe - Latest News 2026-08-12T11:56:03+00:00 urn:uuid:6d2ab107-413c-a211-bcf6-ee8409626f59 10 Years of SurveyCircle: Mannheim-Based Research Platform Supports More Than 180,000 Studies Worldwide urn:uuid:fa964fe6-80b4-6366-17f6-d29e09e31b25 2026-08-12T08:21:03+00:00