1. Re-Examining Myofascial Pain Syndrome: Toward Biomarker Development and Mechanism-Based Diagnostic Criteria

   • Felipe C. K. Duarte
   • Daniel W. D. West
   • Dinesh A. Kumbhare

   Chronic Pain (R Staud, Section Editor) 08 July 2021 Article: 69

   

2. Wind of Change in the Treatment of Childhood-Onset Takayasu Arteritis: a Systematic Review

   • Seher Sener
   • Ozge Basaran
   • Seza Ozen

   Pediatric Rheumatology (S Ozen, Section Editor) 03 July 2021 Article: 68

   

3. Modification of Gut Microbiota in Inflammatory Arthritis: Highlights and Future Challenges

   • Gabriel Horta-Baas
   • Antonio Sandoval-Cabrera
   • María del Socorro Romero-Figueroa

   Rheumatoid Arthritis (L Moreland, Section Editor) 03 July 2021 Article: 67

4. Imaging in Axial Spondyloarthritis: What is Relevant for Diagnosis in Daily Practice?

   • Ulrich Weber
   • Anne Grethe Jurik
   • Walter P. Maksymowych

   Spondyloarthritis (M Khan and N Akkoc, Section Editors) 03 July 2021 Article: 66

   

5. Systematic Review of Antiphospholipid Antibodies in COVID-19 Patients: Culprits or Bystanders?

   • Thomas Foret
   • Virginie Dufrost
   • Denis Wahl

   Antiphospholipid Syndrome (S Zuily, Section Editor) 03 July 2021 Article: 65

   

6. Familial Clustering of Juvenile Psoriatic Arthritis Associated with a Hemizygous FOXP3 Mutation

   • Raed Alzyoud
   • Shahad Alansari
   • Sulaiman M Al-Mayouf

   Pediatric Rheumatology (S Ozen, Section Editor) 03 July 2021 Article: 64

   

7. COVID-19 and Myositis: What We Know So Far

   • Ahmad Saud
   • R Naveen
   • Latika Gupta

   Inflammatory Muscle Disease (L Diederichsen and H Chinoy, Section Editors) 03 July 2021 Article: 63

8. Enzymatic Machinery of Ubiquitin and Ubiquitin-Like Modification Systems in Chondrocyte Homeostasis and Osteoarthritis

   • Ye Liu
   • Vladimir Molchanov
   • Tao Yang

   Osteoarthritis (M Goldring and T Griffin, Section Editors) 03 July 2021 Article: 62

   

9. Current Epidemiology and Risk Factors for the Development of Hand Osteoarthritis

   • Benjamin Plotz
   • Fernando Bomfim
   • Jonathan Samuels

   Osteoarthritis (M Goldring and T Griffin, Section Editors) 03 July 2021 Article: 61

   

10. Anatomical Joint Form Variation in Sacroiliac Joint Disease: Current Concepts and New Perspectives

    • Katharina Ziegeler
    • Kay Geert A. Hermann
    • Torsten Diekhoff

    Spondyloarthritis (M Khan and N Akkoc, Section Editors) Open access 03 July 2021 Article: 60

    

11. MicroRNAs in Axial Spondylarthritis: an Overview of the Recent Progresses in the Field with a Focus on Ankylosing Spondylitis and Psoriatic Arthritis

    • Francesca Motta
    • Andrea Pederzani
    • Matteo Vecellio

    Spondyloarthritis (M Khan and N Akkoc, Section Editors) Open access 03 July 2021 Article: 59

12. Current Understanding of Multisystem Inflammatory Syndrome (MIS-C) Following COVID-19 and Its Distinction from Kawasaki Disease

    • Hulya Bukulmez

    Spondyloarthritis (M Khan and N Akkoc, Section Editors) 03 July 2021 Article: 58