1. Berlin Institute of Health Center for Regenerative Therapies & Berlin - Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, Campus Virchow Klinikum (CVK), Germany
2. Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Germany
3. Henan Provincial People's Hospital, China
4. Second Affiliated Hospital of Zhengzhou University, China