Obaid, A.J. and Alwan, A.A. 2026. The Effect Of Gastric Sleeve Surgery On Physiological Parameters, Serum Iron, Serum Ferritin, And Other Physiological Parameters . International Journal of Aquatic Research and Environmental Studies. 6, S2 (Jun. 2026), 440–448. DOI:https://doi.org/10.70102/pxj8j275.