Dr Divyanshu Gupta and Dr Priyanka Rani 2025. A Prospective Study on Post-Operative Pulmonary Complications and the Efficacy of Pre-Operative Pulmonary Rehabilitation in Elderly Patients Undergoing Lower Limb Arthroplasty at a Tertiary Care Center in India. International Journal of Pharmacy Research & Technology (IJPRT). 15, 1 (Jan. 2025), 1672–1677.