1 Department of neonatal intensive care unit, Femme-Mere-Enfant hospital, hospices civils de Lyon, 59, boulevard Pinel, 69500 Bron, Lyon, France. Electronic address: anne.beissel@chu-lyon.fr.
2 Department of paediatric anaesthesia and intensive care medicine, Femme-Mere-Enfant hospital, hospices civils de Lyon, 59, boulevard Pinel, 69500 Bron, France. Electronic address: marclilot@hotmail.com.
3 Department of anaesthesia and critical care, Croix-Rousse hospital, hospices civils de Lyon, 103, grande rue de la Croix-Rousse, 69317 Lyon, France. Electronic address: christian.bauer@chu-lyon.fr.
4 School of medicine, university of California, 836, Health Science Road, 92697 Irvine, CA, USA. Electronic address: kbeaulie@uci.edu.
5 School of medicine, university of California, 836, Health Science Road, 92697 Irvine, CA, USA. Electronic address: cramosha@uci.edu.
6 Université Lyon 1, EA4169, SFR Lyon-Est Santé, Inserm US 7, CNRS UMS 3453, clinique de la Sauvegarde, Lyon, France. Electronic address: oldesebbe@yahoo.com.
7 Department of anesthesiology and perioperative medicine, David Geffen school of medicine, UCLA, Los Angeles, California, USA. Electronic address: mcannesson@mednet.ucla.edu.
8 Department of anaesthesia and perioperative care, Claude-Bernard-Lyon 1 university, Pierre-Wertheimer hospital, hospices civils de Lyon, Lyon, France. Electronic address: jean-jacques.lehot@chu-lyon.fr.
9 Department of aneasthesiology and perioperative care, university of California, 92697 Irvine, CA, USA. Electronic address: cricks@uci.edu.