Anwar, G., A. Yaqoob, and M. Afzal. “Assessment of Obstructive Sleep Apnea Risk Among Pregnant Women at A Tertiary Care Hospitals in Lahore Pakistan”. Annals of Punjab Medical College, Vol. 16, no. 4, Dec. 2022, pp. 231-3, doi:10.29054/apmc/2022.1271.