Study of Pulmonary Function Tests in Rheumatoid Arthritis Patients and to Establish Correlation between Pulmonary Function and Disease Activity of Rheumatoid Arthritis in Eastern India: Editor’s Note: This article has been retracted as of January 2026 as it is out of scope. IJPHRD [Internet]. 2023 Jun. 21 [cited 2026 May 26];14(3):62-70. Available from: https://mail.medicopublication.com/index.php/ijphrd/article/view/19359