Ali, S., S. Sheikh, M. Irfan, R. A. Chaudhry, S. Hassan, and I. Waheed. “Frequency of Elevated Homocysteine Level in Patients Presented With Ischemic Stroke”. Annals of Punjab Medical College (APMC), Vol. 15, no. 2, June 2021, pp. 117-20, doi:10.29054/apmc/2021.705.