indicate the monthly minimum amount of arterial bp [systolic] for patient 14982 until 03/2105.
select min(chartevents.valuenum) from chartevents where chartevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 14982 ) ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'arterial bp [systolic]' and d_items.linksto = 'chartevents' ) and strftime('%y-%m',chartevents.charttime) <= '2105-03' group by strftime('%y-%m',chartevents.charttime)