list the top three most frequent lab tests that patients have been given within the same month after receiving endosc remove bile stone in this year.
select d_labitems.label from d_labitems where d_labitems.itemid in ( select t3.itemid from ( select t2.itemid, dense_rank() over ( order by count(*) desc ) as c1 from ( select admissions.subject_id, procedures_icd.charttime from procedures_icd join admissions on procedures_icd.hadm_id = admissions.hadm_id where procedures_icd.icd9_code = ( select d_icd_procedures.icd9_code from d_icd_procedures where d_icd_procedures.short_title = 'endosc remove bile stone' ) and datetime(procedures_icd.charttime,'start of year') = datetime(current_time,'start of year','-0 year') ) as t1 join ( select admissions.subject_id, labevents.itemid, labevents.charttime from labevents join admissions on labevents.hadm_id = admissions.hadm_id where datetime(labevents.charttime,'start of year') = datetime(current_time,'start of year','-0 year') ) as t2 on t1.subject_id = t2.subject_id where t1.charttime < t2.charttime and datetime(t1.charttime,'start of month') = datetime(t2.charttime,'start of month') group by t2.itemid ) as t3 where t3.c1 <= 3 )