2. Methodology

Literature search was comprehensively conducted in search engines such as PubMed, Google scholar and online scientific electronic library from March 2020 to May 2020 in accordance with procedures formerly described by.10 The search was independent and solely done by selecting databases that included original articles published in peer-reviewed journals, books, thesis, dissertations, patents and other reports that covered Cannabis sativa dated until May 2020. Articles published between 2012 and May 2020 was considered if it had information regarding marijuana toxicity and medicinal properties. Further searches were conducted in google search engine by including general terms such as; marijuana toxicity, cancer, carcinogenicity, dangers, intake methods, throat cancer, smoking, cigarettes and cessation. Where there was need, the search outputs were saved in databases and the authors received notifications for searches that met the search criteria from science direct, PubMed, crossref and google scholar. The Marijuana plant - Cannabis sativa (Marijuana) is a flowering plant belonging to the family Cannabaceae, although the number of species within the genus is still debatable. Fig 2a presents Marijuana leaves, whereas Fig 2b presents the plant Marijuana, respectively.