Zheng W, Leong PY, Wei JC. Correspondence to 'Comparative effectiveness of first-line tumour necrosis factor inhibitor versus non-tumour necrosis factor inhibitor biologics and targeted synthetic agents in patients with rheumatoid arthritis: results from a large US registry stu Ann Rheum Dis 2020 Nov 11. pii: annrheumdis-2020-218865.
PMID: 33177099