Hello, my name is BELAHCENE samia, i'm 24 years old. i am from Constantine, I've a master's degree in Toxicology and health from University of Mentouri Constantine-1. I have passed my doctoral competition in pharmaco-toxicology in university of jijel. Currently, i am affiliated to the biotechnology, environnement and health laboratory as a PhD student under the direction of Professor LEGHOUCHI Essaid.
My cordial greetings.
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