TY - JOUR T1 - Preoxygenation in the Elderly: Comparison of 3-min and Four Deep Breath Techniques AU - Özgültekin, Asu Y1 - 2019 PY - 2019 DA - 2019 N1 - doi: 10.14744/hnhj.2018.72677 DO - 10.14744/hnhj.2018.72677 T2 - HAYDARPAŞA NUMUNE MEDICAL JOURNAL JF - HAYDARPAŞA NUMUNE MEDICAL JOURNAL JO - Haydarpasa Numune Med J SP - 8 EP - 12 VL - 59 IS - 1 SN - M3 - doi: 10.14744/hnhj.2018.72677 UR - https://dx.doi.org/10.14744/hnhj.2018.72677 Y2 - 2019 ER -