โรคโลหิตจาง ( ฮีโมโกลบิน < 8.5 mg / dl )ไม่จำเป็นต้องใช้ทุกตาราง
anemia ( haemoglobin < 8.5 mg / dl )It is not neccessary to use all the tables.
 table_test_27:  "id" [ int]  "anemia" [ bool]  "bleeding" [ int]  "left_ventricular_ejection_fraction_lvef" [ int]  "intra_aortic_balloon_pump_iabp" [ bool]  "systolic_blood_pressure_sbp" [ int]  "left_main_stem_coronary_artery_stenosis" [ int]  "haemoglobin" [ float]  "renal_disease" [ bool]  "creatinine_clearance_cl" [ float]  "estimated_glomerular_filtration_rate_egfr" [ int]  "cardiogenic_shock" [ bool]  "platelet_count" [ float]  "iv_pressors" [ bool]  "hemodynamic_instability" [ bool]  "hypotension" [ bool]  "serum_creatinine" [ float]  "NOUSE" [ float] 
SELECT * FROM table_test_27 WHERE anemia = 1 OR haemoglobin < 8.5