Yusuf, M., Kulsum, K. and Gianty, J.A. 2022. The Correlation between Pre-operative Leukocyte Levels and Length of Stay in Appendicitis Patients after an Appendectomy at Dr. Zainoel Abidin Hospital 2019–2020. Open Access Macedonian Journal of Medical Sciences. 10, B (Nov. 2022), 2239–2244. DOI:https://doi.org/10.3889/oamjms.2022.9482.