Zain Ilyas, Mohsana Tariq, Misdaq Batool, Sabahat Ali Sheikh, Firasha Ayub, Zara Fatima. “Reference Values for Respiratory Parameters in General Adult Population”. Pakistan Journal of Medical & Health Sciences, vol. 17, no. 05, June 2023, p. 198, doi:10.53350/pjmhs2023175198.