Find the name and position of physicians who prescribe some medication whose brand is X?
SELECT DISTINCT T1.name ,  T1.position FROM physician AS T1 JOIN prescribes AS T2 ON T1.employeeid = T2.physician JOIN medication AS T3 ON T3.code = T2.medication WHERE T3.Brand  =  "X"
Marka X olan bazı ilaçları reçete eden doktorların adını ve konumunu bulun?