passages.id: split_7_validation_1617_passage
passages.type: progene_text
passages.text: Differential white blood cell counts were investigated on blood cell counter SYSMEX SF 3000 in 4 consecutive periods : 1 day one before surgery , 0 the day of surgery or ICU admittance , 1 day one after surgery ( or the 1st ICU day ) , 2nd day following surgery ( or the 2nd ICU day ) .