when did patient 93571 get the int insert dual-cham dev procedure for the last time in 2103?
select procedures_icd.charttime from procedures_icd where procedures_icd.icd9_code = ( select d_icd_procedures.icd9_code from d_icd_procedures where d_icd_procedures.short_title = 'int insert dual-cham dev' ) and procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 93571 ) and strftime('%y',procedures_icd.charttime) = '2103' order by procedures_icd.charttime desc limit 1