1 Investigaciones Reumatológicas y Osteológicas (IRO) Medical Center, Buenos Aires, Argentina.
2 Centro de Diagnóstico de Osteoporosis y Enfermedades Reumáticas (CEDOR), Lima, Perú.
3 Centro de Diagnóstico de Osteoporosis y Enfermedades Reumáticas (CEDOR), Lima, Perú. maritza.vidal55@hotmail.com.
4 Department of Rheumatology, Amsterdam UMC, Amsterdam Rheumatology and Immunology Center, Vrije Universiteit Amsterdam, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
5 Department of Rheumatology, North West Clinics, Postbus 501, 1800 AM, Alkmaar, The Netherlands.
6 Department of Rheumatology, Amsterdam UMC, Location VU University Medical Centre Amsterdam, Amsterdam, Noord‑Holland, The Netherlands.