2024. Association between Chewing Khat (Catha edulis) and Hematological Indices and Helicobacter pylori Infection and Blood Loss in the Gastrointestinal Tract of Yemeni Chewers. مجلة جامعة صنعاء للطب والعلوم الصحية. 18, 1 (مايو 2024), 21–26. DOI:https://doi.org/10.59628/jchm.v18i1.924.