instruction: count the number of patients whose diagnoses long title is atherosclerosis of native arteries of the extremities with intermittent claudication and lab test abnormal status is abnormal?
response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN diagnoses ON demographic.hadm_id = diagnoses.hadm_id INNER JOIN lab ON demographic.hadm_id = lab.hadm_id WHERE diagnoses.long_title = "Atherosclerosis of native arteries of the extremities with intermittent claudication" AND lab.flag = "abnormal"