how many patients in 2105 had an intake of neocate 24?
select count( distinct admissions.subject_id ) from admissions where admissions.hadm_id in ( select icustays.hadm_id from icustays where icustays.icustay_id in ( select inputevents_cv.icustay_id from inputevents_cv where inputevents_cv.itemid in ( select d_items.itemid from d_items where d_items.label = 'neocate 24' and d_items.linksto = 'inputevents_cv' ) and strftime('%y',inputevents_cv.charttime) = '2105' ) )