“The Impact of Phosphodiesterase-5 Inhibitor (sildenafil Citrate) on Some Hippocampal Neurotransmitters, Oxidative Stress Status, Minerals, and Anxiety-Like Behavior in Rats”. 2020. Journal of Advanced Veterinary and Animal Research 7 (2): 281-89. https://www.banglajol.info/index.php/JAVAR/article/view/47522.