instruction: count the number of patients whose diagnoses short title is nonrupt cerebral aneurym and lab test category is hematology?
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.short_title = "Nonrupt cerebral aneurym" AND lab."CATEGORY" = "Hematology"