1. Biologics in systemic autoimmune diseases during COVID-19 pandemic

   • Narender Annapureddy
   • Krishna Nalleballe
   • Ranadeep Mandhadi

   Letter to the Editor 04 October 2020 Pages: 3529 - 3531

2. Diversifying online rheumatology education options in the era of COVID-19

   • Sakir Ahmed
   • Olena Zimba
   • Armen Yuri Gasparyan

   Letter to the Editor 19 October 2020 Pages: 3533 - 3534

3. Challenges, collaboration, and innovation in rheumatology education during the COVID-19 pandemic: leveraging new ways to teach

   • Anisha B Dua
   • Adam Kilian
   • Beth L Jonas

   Perspectives in Rheumatology 16 October 2020 Pages: 3535 - 3541

4. Update on therapeutic management of spondyloarthritis associated with inflammatory bowel disease

   • Dorra Ben Nessib
   • Hanene Ferjani
   • Wafa Hamdi

   Review Article 18 May 2020 Pages: 3543 - 3553

   

5. Vitamin D receptor (VDR) gene polymorphism and risk of rheumatoid arthritis (RA): systematic review and meta-analysis

   • Zahra Bagheri-Hosseinabadi
   • Danyal Imani
   • Mitra Abbasifard

   Review Article 22 May 2020 Pages: 3555 - 3569

   

6. A systematic review and meta-analysis of vitamin D and calcium in preventing osteoporotic fractures

   • Albani Eleni
   • Petrou Panagiotis

   Review Article 24 May 2020 Pages: 3571 - 3579

   

7. Meta-analysis on the efficacy and safety of immunoadsorption for systemic lupus erythematosus among Chinese population

   • Meng Yang
   • Chifeng Liao
   • Wei Zhang

   Review Article 28 May 2020 Pages: 3581 - 3592

   

8. Rheumatology-led pregnancy clinic: enhancing the care of women with rheumatic diseases during pregnancy

   • Yasser El Miedany
   • Deborah Palmer

   Review Article Open access 03 June 2020 Pages: 3593 - 3601

   

9. Cachexia in patients with rheumatoid arthritis: a cohort study

   • Rafaela CE Santo
   • Jordana MS Silva
   • Ricardo M Xavier

   Original Article 23 May 2020 Pages: 3603 - 3613

   

10. High prevalence of patellofemoral osteoarthritis in China: a multi-center population-based osteoarthritis study

    • Zhanglai Li
    • Qiang Liu
    • Yuqing Zhang

    Original Article 29 May 2020 Pages: 3615 - 3623

    

11. The prevalence of fabella and its association with the osteoarthritic severity of the knee in Korea

    • Jin-Wuk Hur
    • Seunghun Lee
    • Jae-Bum Jun

    Brief Report 18 June 2020 Pages: 3625 - 3629

12. Immune checkpoint inhibitor-induced inflammatory arthritis: a novel clinical entity with striking similarities to seronegative rheumatoid arthritis

    • Yuan Liu
    • Jane M. Jaquith
    • Hu Zeng

    Original Article 30 May 2020 Pages: 3631 - 3637

13. Characteristics of Chikungunya virus infection in patients with established rheumatoid arthritis

    • Mario Bautista-Vargas
    • German Puerta-Sarmiento
    • Carlos A. Cañas

    Brief Report 08 June 2020 Pages: 3639 - 3642

14. Correlation of patient preferences to treatment outcomes in patients with rheumatoid arthritis treated with tumour necrosis factor inhibitors in Greece

    • Prodromos Sidiropoulos
    • Andreas Bounas
    • Dimitrios Vassilopoulos

    Original Article 26 May 2020 Pages: 3643 - 3652

    

15. Potential and prognostic factor for belimumab-free remission in patients with systemic lupus erythematosus: a single-center retrospective analysis

    • Takehiro Nakai
    • Sho Fukui
    • Masato Okada

    Brief Report 24 June 2020 Pages: 3653 - 3659

    

16. Acute myocardial dysfunction in lupus: outcomes in Asian Indians

    • Aadhaar Dhooria
    • Atit Gawalkar
    • Varun Dhir

    Original Article 22 May 2020 Pages: 3661 - 3667

    

17. Non-steroidal anti-inflammatory drugs in patients with stable ankylosing spondylitis receiving tumor necrosis factor inhibitor: continued vs withdrawn

    • Jung Hwan Park
    • Oh Chan Kwon
    • Min-Chan Park

    Original Article 23 May 2020 Pages: 3669 - 3675

    

18. Early diagnosis of psoriatic arthritis among psoriasis patients: clinical experience sharing

    • Yu-Jih Su

    Original Article Open access 28 May 2020 Pages: 3677 - 3684

    

19. Fragility fractures in psoriatic arthritis patients: a matched retrospective cohort study

    • Luciano F. Lo Giudice
    • Marina Scolnik
    • Enrique R. Soriano

    Original Article 27 May 2020 Pages: 3685 - 3691

    

20. Reduction of fat free mass index and phase angle is a risk factor for development digital ulcers in systemic sclerosis patients

    • Edoardo Rosato
    • Antonietta Gigante
    • Maurizio Muscaritoli

    Original Article 23 May 2020 Pages: 3693 - 3700

    

21. Performance of the 2017 EUSTAR activity index in an scleroderma cohort

    • Laura Ross
    • Wendy Stevens
    • Mandana Nikpour

    Brief Report 21 July 2020 Pages: 3701 - 3705

    

22. Parotid elastography: a potential alternative to replace labial biopsy in classification of patients with primary Sjögren’s syndrome?

    • Hasan Satış
    • E. Cindil
    • B. Göker

    Original Article 26 May 2020 Pages: 3707 - 3713

    

23. Diagnostic utility of submandibular and labial salivary gland biopsy in IgG4-related sialadenitis

    • Yan-Yan Zhang
    • Xia Hong
    • Guang-Yan Yu

    Original Article 26 May 2020 Pages: 3715 - 3721

    

24. Anxiety and depression in adult-onset Still’s disease patients and associations with health-related quality of life

    • Huihui Chi
    • Haiyan Jin
    • Yutong Su

    Original Article 23 May 2020 Pages: 3723 - 3732

    

25. Genetic panel screening in patients with clinically unclassified systemic autoinflammatory diseases

    • Ferhat Demir
    • Özlem Akgün Doğan
    • Betül Sözeri

    Original Article 26 May 2020 Pages: 3733 - 3745

    

26. Relationship between post-IVIG IgG levels and clinical outcomes in Kawasaki disease patients: new insight into the mechanism of action of IVIG

    • Ryunosuke Goto
    • Ryo Inuzuka
    • Akira Oka

    Original Article 27 May 2020 Pages: 3747 - 3755

    

27. Neck circumference is an independent risk factor for hyperuricemia within 3 years in women: a longitudinal study

    • Ping An
    • Kang Chen
    • Zhaohui Lv

    Original Article 26 May 2020 Pages: 3757 - 3767

    

28. Comparison of persistence rates between allopurinol and febuxostat as first-line urate-lowering therapy in patients with gout: an 8-year retrospective cohort study

    • Aran Kim
    • Yunkyung Kim
    • Seung-Geun Lee

    Original Article 26 May 2020 Pages: 3769 - 3776

    

29. Associations of serum iron and ferritin with hyperuricemia and serum uric acid

    • Yilun Wang
    • Zidan Yang
    • Yilin Xiong

    Original Article 26 May 2020 Pages: 3777 - 3785

    

30. Ultrasonographic features of acute Charcot neuroarthropathy of the foot: a pilot study

    • M. Mortada
    • N. Ezzeldin
    • Marwa Hammad

    Original Article 24 May 2020 Pages: 3787 - 3793

    

31. Correction to: Ultrasonographic features of acute Charcot neuroarthropathy of the foot: a pilot study

    • M. Mortada
    • N. Ezzeldin
    • Marwa Hammad

    Correction 13 October 2020 Pages: 3795 - 3796

32. Interleukin-29 regulates T follicular helper cells by repressing BCL6 in rheumatoid arthritis patients

    • Tingshuang Xu
    • Tianyi Yan
    • Ping Li

    Original Article 28 May 2020 Pages: 3797 - 3804

    

33. In shoulder adhesive capsulitis, ultrasound-guided anterior hydrodilatation in rotator interval is more effective than posterior approach: a randomized controlled study

    • Basant Elnady
    • Elsayed M. Rageh
    • Johannes J. Rasker

    Original Article Open access 08 May 2020 Pages: 3805 - 3814

    

34. Correction to: In shoulder adhesive capsulitis, ultrasound-guided anterior hydrodilatation in rotator interval is more effective than posterior approach: a randomized controlled study

    • Basant Elnady
    • Elsayed M. Rageh
    • Johannes J. Rasker

    Correction 15 October 2020 Pages: 3815 - 3815

35. IPAF should receive early treatment for sharing similar clinical characteristics as CTD-ILD: a report from 273 Chinese patients

    • Ying Li
    • ZhaoHui Zheng
    • Ping Zhu

    Original Article 23 May 2020 Pages: 3817 - 3823

    

36. How nonbacterial osteomyelitis could be discriminated from tuberculosis in the early stages: the simple algorithm

    • Mikhail M. Kostik
    • Olga L. Kopchak
    • Alexander Yu. Mushkin

    Brief Report 08 June 2020 Pages: 3825 - 3832

37. Rheumatoid meningitis and infection in absence of rheumatoid arthritis history: review of 31 cases

    • Milena Rodriguez Alvarez
    • Laura Melissa Rodríguez Valencia
    • Isabel M McFarlane

    Case Based Review 09 June 2020 Pages: 3833 - 3845

    

38. A Chinese case series of Schnitzler syndrome and complete remission in one tocilizumab-treated patient

    • Ruyu Yan
    • Wei Cao
    • Min Shen

    Case Based Review 09 June 2020 Pages: 3847 - 3852

    

39. Two cases of ADA2 deficiency presenting as childhood polyarteritis nodosa: novel ADA2 variant, atypical CNS manifestations, and literature review

    • Sara Ganhão
    • Graça Barros Loureiro
    • Iva Brito

    Case Based Review 13 June 2020 Pages: 3853 - 3860

    

40. Moyamoya syndrome related to systemic lupus erythematosus developing during pregnancy: a case-based review

    • Rika Tanaka
    • Yasuhiro Shimojima
    • Yoshiki Sekijima

    Case Based Review 19 June 2020 Pages: 3861 - 3867

    

41. Bilateral swelling of the forearms revealing muscular sarcoidosis: a case-based review

    • Mohamed Ahmed Ghassem
    • Abdellah El Maghraoui
    • Lahsen Achemlal

    Case Based Review 27 June 2020 Pages: 3869 - 3873

    

42. Can metabolic profiling provide a new description of osteoarthritis and enable a personalised medicine approach?

    • M. K. J. Jaggard
    • C. L. Boulangé
    • C. M. Gupte

    Perspectives in Rheumatology Open access 01 June 2020 Pages: 3875 - 3882

    

43. Presacral extramedullary hematopoiesis: a rare cause of back pain in a patient with thalassemia

    • Maroua Slouma
    • Salma Athimni
    • Bassem Louzir

    Clinical Image 07 July 2020 Pages: 3883 - 3884

    

44. En coup de sabre presenting as status epilepticus

    • Pawan Kashyape
    • Ajay Prashanth D’Souza
    • Basil Fathalla

    Clinical Image 18 July 2020 Pages: 3885 - 3886

    

45. Disseminated anetoderma associated with antiphospholipid antibodies

    • Jorge A. Esquivel-Valerio
    • Jesus Alberto Cardenas-de la Garza
    • Dionicio A. Galarza-Delgado

    Clinical Image 10 August 2020 Pages: 3887 - 3888

    

46. Investigating correlation between self-reported clinical manifestation and synovial fluid and blood levels of Dickkopf-1 and sclerostin in patients with primary knee osteoarthritis

    • T. P. Theologis
    • P. T. Masouros
    • Eva Kassi

    Letters of Biomedical and Clinical Research 24 July 2020 Pages: 3889 - 3891

    

47. Comment “orbital compartment syndrome as the first manifestation of SLE”

    • Otto J. Hernandez Fustes

    Letter to the Editor 02 July 2020 Pages: 3893 - 3893

48. Letter to the editor: orbital compartment syndrome as the first manifestation of SLE

    • Maria Colon
    • Lara El Khoury

    Letter to the Editor 06 October 2020 Pages: 3895 - 3895

49. Human touch in digital education—a solution

    • Mehul Sinha
    • Vikas Agarwal
    • Latika Gupta

    Letter to the Editor 09 October 2020 Pages: 3897 - 3898

50. Platelet-rich plasma for hip osteoarthritis: comparing the variables in production protocol and composition

    • Khan Sharun
    • Abhijit M. Pawde

    Letter to the Editor 11 August 2020 Pages: 3899 - 3901