Ellahi, Ayesha, Sunila Tashfeen, Fahim Akhtar, Aiza Saadia, Samra Shahid, and Muhammad Wasiullah Khan. “Pre-Analytical Errors in Haematology Laboratory of a Tertiary Care Hospital: A Cross-Sectional Study of Northern Pakistan”. Pakistan Armed Forces Medical Journal 74, no. 1 (February 28, 2024): 164–167. Accessed August 4, 2025. https://www.pafmj.org/PAFMJ/article/view/9402.