"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, م 18, عدد 1, مايو، 2024, ص 21-26, https://doi.org/10.59628/jchm.v18i1.924.