1 Intensive Care Unit, Tours University Hospital, Research Center for Respiratory Diseases, INSERM U1100, University of Tours, Tours, France.
2 Epidemiology Unit EpiDcliC, Service of Public Health, Tours University Hospital, 2 Bd Tonnellé, 37044, Tours Cedex 9, France.
3 Research Unit EA7505 (Education Ethique Et Santé), University of Tours, Tours, France.
4 Intensive Care Unit, Teaching Hospital of Nancy, University of Lorraine, INSERM U1116, Nancy, France.
5 Epidemiology Unit EpiDcliC, Service of Public Health, Tours University Hospital, 2 Bd Tonnellé, 37044, Tours Cedex 9, France. leslie.guillon@univ-tours.fr.
6 MAVIVH, INSERM U1259, Tours, France. leslie.guillon@univ-tours.fr.
7 University of Tours, Tours, France. leslie.guillon@univ-tours.fr.