1. Deutschsprachige Selbsthilfegruppe für Alkaptonurie (DSAKU) e.V.; Stuttgart Germany
2. Probiodrug AG; Halle (Saale) Germany
3. Department of Experimental Therapy; Franz-Penzoldt-Center; Friedrich-Alexander-University Erlangen-Nürnberg; Erlangen Germany
4. Brain Disease Biomarker Unit; Department of Experimental Medical Science; Wallenberg Neuroscience Centre; Lund University; Lund Sweden
5. Translational Neuroendocrine Research Unit; Lund University; Lund Sweden
6. Center for Clinical Chemistry, Microbiology and Transfusion; Klinikum St. Georg GmbH; Leipzig Germany
7. Institute of Molecular Biology (IMB); Johannes Gutenberg-University Mainz; Mainz Germany
8. Department of Drug Design and Target Validation; Fraunhofer-Institute for Cell Therapy and Immunology; Halle (Saale) Germany
9. The Centre for Molecular Medicine and Therapeutics Child and Family Research Institute; BC Children's Hospital; The University of British Columbia; Vancouver British Columbia