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Pulmonary Function and Disease Activity of Rheumatoid Arthritis in Eastern India: Editor’s Note: This article has been retracted as of January 2026 as it is out of scope.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. 2023;14(3):62-70. doi:10.37506/ijphrd.v14i3.19359