List of Articles Hanaa Elzahed Article 1 - Cumulative Effect of Mesenchymal Stem Cells and Heme Oxygenase-1 Inducer in Ameliorating Induced Liver Toxicity in Rats 10.22034/jchr.2020.1881598.1058 Ahmed Talaat Abd Elaziz Hanaa Mohamed Elzahed Shar Hassan Hassan Bahaa Eldin A. Khaled Eman H. Nadwa Journal of Chemical Health Risks , Issue 1 , Year , Winter 2020 Article 2 - Occupational Exposure to Heavy Metal Initiate Carcinogenesis Though BRAF/KRAS Over Expression and DNA Methylation 10.22034/jchr.2020.1883307.1066 Ahmed Talaat Abd Elaziz Hanaa Mohamed Elzahed Shar Hassan Ahmed Wael Fathy Journal of Chemical Health Risks , Issue 2 , Year , Spring 2020