บอกจำนวนผู้ป่วยที่เสียชีวิตในหรือก่อนปี 2174 และมีรหัสยา osel75 ไม่จำเป็นต้องใช้ตารางทั้งหมด
Tell me the number of patients who died in or before 2174 and had drug code osel75.It is not neccessary to use all the tables.
 demographic:  subject_id [ text]  hadm_id [ text]  name [ text]  marital_status [ text]  age [ text]  dob [ text]  gender [ text]  language [ text]  religion [ text]  admission_type [ text]  days_stay [ text]  insurance [ text]  ethnicity [ text]  expire_flag [ text]  admission_location [ text]  discharge_location [ text]  diagnosis [ text]  dod [ text]  dob_year [ text]  dod_year [ text]  admittime [ text]  dischtime [ text]  admityear [ text] 
SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN prescriptions ON demographic.hadm_id = prescriptions.hadm_id WHERE demographic.dod_year <= "2174.0" AND prescriptions.formulary_drug_cd = "OSEL75"