instruction: count how many times patient 30976 has received a entral infus nutrit sub procedure in their first hospital encounter.
response: SELECT COUNT(*) FROM procedures_icd WHERE procedures_icd.icd9_code = (SELECT d_icd_procedures.icd9_code FROM d_icd_procedures WHERE d_icd_procedures.short_title = 'entral infus nutrit sub') AND procedures_icd.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 30976 AND NOT admissions.dischtime IS NULL ORDER BY admissions.admittime LIMIT 1)