1. REGENERAR—Pain Medical Center, Porto Alegre 90620-130, Brazil
2. PhD (c) Faculty of Medicine, University of Porto, 4200-135 Porto, Portugal
3. Spine Group, Hospital Ernesto Dornelles, Porto Alegre 90160-092, Brazil
4. Department of Orthopedics and Traumatology, Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo 01224-001, Brazil
5. San Diego Orthobiologics Medical Group, Carlsbad, CA 92011, USA
6. Le Reve Regenerative Wellness, Campbell, CA 95008, USA
7. Center for Tissue Regeneration Studies, Campinas 13076-629, Brazil
8. Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
9. Institute for Research and Innovation in Health and IBMC, University of Porto, 4200-135 Porto, Portugal
10. CIEG-ISCSP, University of Lisbon Camp, 1300-663 Lisboa, Portugal
11. Instituto de Saúde Pública da Universidade do Porto (ISPUP), 4050-600 Porto, Portugal