hey what was patient 1902's maximum absolute cd3 count value since 139 months ago?
select max(labevents.valuenum) from labevents where labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 1902 ) and labevents.itemid in ( select d_labitems.itemid from d_labitems where d_labitems.label = 'absolute cd3 count' ) and datetime(labevents.charttime) >= datetime(current_time,'-139 month')