what is the last procedure that patient 40967 received?
select d_icd_procedures.short_title from d_icd_procedures where d_icd_procedures.icd9_code in ( select procedures_icd.icd9_code from procedures_icd where procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 40967 ) order by procedures_icd.charttime desc limit 1 )