Soliman, Hamdy A M Poikilocytosis and tissue damage as negative impacts of tramadol on juvenile of Tilapia (Oreochromis niloticus). [electronic resource] - Environmental toxicology and pharmacology Aug 2020 - 103383 p. digital Publication Type: Journal Article ISSN: 1872-7077 Standard No.: 10.1016/j.etap.2020.103383 doi Subjects--Topical Terms: AnimalsBrain--drug effectsCichlidsErythrocytes--drug effectsGills--drug effectsLiver--drug effectsNarcotics--toxicityTramadol--toxicityWater Pollutants, Chemical--toxicity