what is the last value of the white blood cells of patient 16088 since 02/2100?
select labevents.valuenum from labevents where labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 16088 ) and labevents.itemid in ( select d_labitems.itemid from d_labitems where d_labitems.label = 'white blood cells' ) and strftime('%y-%m',labevents.charttime) >= '2100-02' order by labevents.charttime desc limit 1