what is the minimum amount of total hospital cost including oth mult lb-in hosp w cs until 1 year ago?
select min(t1.c1) from ( select sum(cost.cost) as c1 from cost where cost.hadm_id in ( select diagnoses_icd.hadm_id from diagnoses_icd where diagnoses_icd.icd9_code = ( select d_icd_diagnoses.icd9_code from d_icd_diagnoses where d_icd_diagnoses.short_title = 'oth mult lb-in hosp w cs' ) ) and datetime(cost.chargetime) <= datetime(current_time,'-1 year') group by cost.hadm_id ) as t1