{"doc_desc":{"title":"Research Study - Multiple Longitudinal Surveys","idno":"research_study_4"},"study_desc":{"title_statement":{"idno":"research_study_4","title":"Research Study - Multiple Longitudinal Surveys","sub_title":"Research Study - Multiple Longitudinal Surveys"},"study_info":{"quality_statement":{"standards":[{"name":"","producer":""}]},"ex_post_evaluation":{"completion_date":"","type":""}}},"schematype":"survey"}