ความดันโลหิตล่าง < 90 mmhg ไม่จำเป็นต้องใช้ทุกตาราง
diastolic blood pressure < 90 mmhgIt is not neccessary to use all the tables.
 table_test_13:  "id" [ int]  "systolic_blood_pressure_sbp" [ int]  "tachycardia" [ int]  "diastolic_blood_pressure_dbp" [ int]  "total_cholesterol" [ int]  "high_density_lipoprotein_cholesterol_hdl_c" [ int]  "serum_creatinine" [ float]  "alcohol_abuse" [ bool]  "drug_abuse" [ bool]  "body_mass_index_bmi" [ float]  "triglyceride_tg" [ float]  "age" [ float]  "NOUSE" [ float] 
SELECT * FROM table_test_13 WHERE diastolic_blood_pressure_dbp < 90