1. Rheumatology Department, Hospital Nacional Guillermo Almenara Irigoyen, EsSalud, Lima, Peru
2. Universidad Científica del Sur, Lima, Peru
3. Molecular Biology Department, Hospital Nacional Guillermo Almenara Irigoyen, EsSalud, Lima, Peru
4. Universidad Nacional Mayor de San Marcos, Lima, Peru
5. School of Medicine, The University of Alabama at Birmingham, Birmingham, USA