tell me the total chest tubes cticu ct 1 output that patient 88191 has had on 09/18/2102?
select sum(outputevents.value) from outputevents where outputevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 88191 ) ) and outputevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'chest tubes cticu ct 1' and d_items.linksto = 'outputevents' ) and strftime('%y-%m-%d',outputevents.charttime) = '2102-09-18'