when was patient 1272 first tested at a laboratory in 11/2104?
select labevents.charttime from labevents where labevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 1272 ) and strftime('%y-%m',labevents.charttime) = '2104-11' order by labevents.charttime asc limit 1