instruction: give me the number of patients whose primary disease is coronary artery disease\coronary artery bypass graft; myomectomy/sda and lab test fluid is pleural?
response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN lab ON demographic.hadm_id = lab.hadm_id WHERE demographic.diagnosis = "CORONARY ARTERY DISEASE\CORONARY ARTERY BYPASS GRAFT; MYOMECTOMY/SDA" AND lab.fluid = "Pleural"