Khat Chewing Effect on the International Normalized Ratio in Patients with Mechanical Heart Valves under Warfarin Therapy

Sultan Abdulwadoud Alshoabi, Nouradden Noman Aljaber, Abdulwahab Omer Hussain, Khalid Mohammed Aloufi and Suliman Gafar Salih

Pakistan Journal of Biological Sciences 23 ( 11 ): 1487 - 1491 , 2020