Outougari, Maryam, Farhad Hosseinzadeh Lotfi, Mohsen Rostamy-Malkhalifeh, and Tofigh Allahviranloo. 2025. “Revenue Efficiency and the Detection and Analysis of Congestion in Pharmaceutical Companies: A Two-Stage Framework”. Annals of Healthcare Systems Engineering 2 (4): 262-74. https://doi.org/10.22105/ahse.v2i4.55.