Dr Soorej Jose Puthoopparambil (IMAGE) Bielefeld University Caption According to co-study leader from Uppsala University, political and structural factors often hinder the effective implementation of existing guidelines for collecting migrant health data. Credit Mikael Wallerstedt Usage Restrictions The image may only be used with appropriate caption and credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.