Ali bin Issa al-Garrah - al Muqtadir's minister - ordered the first state physician Sinan bin Thabit, in a written letter, to let doctors travel to the peripheries of the state. He said in his letter '' I thought of people who live in the peripheries and that among them are patients who do not receive any medical care because there are no doctors there. So, assign - May God prolong your life - some physicians to visit the peripheries; also a pharmacy containing drugs and syrups. They have to travel all through the peripheries and stay in each region enough time to perform treatment of patients, then they move to another one ''.