ขอทราบจำนวนผู้ป่วยที่เป็นโรคหลัก bradycardia และผลแล็บ test ผิดปกติ สถานะผิดปกติหรือไม่ ไม่จำเป็นต้องใช้ทุกตาราง
give me the number of patients whose primary disease is bradycardia and lab test abnormal status is abnormal?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 lab ON demographic.hadm_id = lab.hadm_id WHERE demographic.diagnosis = "BRADYCARDIA" AND lab.flag = "abnormal"