hmm.. what was patient 3710's first basophils until 11/2105?
select labevents.valuenum from labevents where labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 3710 ) and labevents.itemid in ( select d_labitems.itemid from d_labitems where d_labitems.label = 'basophils' ) and strftime('%y-%m',labevents.charttime) <= '2105-11' order by labevents.charttime asc limit 1