| Abdel Hasseb A Fayed Serum and testicular trace element concentration in rabbits at different agesAbdel Hasseb A Fayed Department of Physiology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt Biol Trace Elem Res 134:64-7. 2010 Brain trace element concentration of rats treated with the plant alkaloid, vincamineAbdel Hasseb A Fayed Department of Physiology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt Biol Trace Elem Res 136:314-9. 2010 Effect of sildenafil citrate (Viagra®) on trace element concentration in serum and brain of ratsAbdel Hasseb A Fayed Department of Physiology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt J Trace Elem Med Biol 25:236-8. 2011
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