Blood Samples The blood samples were collected for Interleukin-6 (IL-6) and for C-Reactive Protein (CRP), by a trained nurse with a valid license for the province of Quebec. The IL-6 blood sample was collected in a lavender tube (4.0 ml, BD Vacutainer, K2 EDTA, lot 7344830, BD, Franklin Lakes, New Jersey, USA) and the sample was left at room temperature for 15 minutes then it was centrifuge for 15 minutes at 1000g, it was immediately decanted and the plasma was transferred via disposable transfer pipette ( Category number 13-711-7 Fisher Scientific, Pittsburgh, Pennsylvania, USA) into Eppendorf tubes (Sarstedt, Nümbrecth, Germany), the tube was closed and the tube was put on dry ice until it was delivered at the laboratory of the Hôpital St-Luc in Montréal. The CRP blood sample was collected in a yellow tube (5.0 ml, BD Vacutainer, SST, lot 8032322, BD, Franklin Lakes, New Jersey, USA) and the sample was left at room temperature for 15 minutes then it was centrifuge for 15 minutes at 1000g, it was immediately decanted and the serum was transferred via disposable transfer pipette ( Category number 13-711-7Fisher Scientific, Pittsburgh, Pennsylvania, USA) into Eppendorf tubes (Sarstedt, Nümbrecth, Germany), the tube was closed and the tube was put on dry ice until it was delivered at the laboratory of the Hôpital St-Luc in Montréal. All the needles were disposed after a single use in a biohazard container (BD, Sharps collector, reference number 305648, lot 7103001, BD Medical, Oakville, Ontario) provided by the Centre Local de Services de Santé (C.L.S.C.), an organism from the Quebec Ministry of Health. The analyses were performed at the laboratory of Hôpital St-Luc in Montreal under the supervision of Dr. Line Labrecque PhD in biochemistry. The results were provided by electronic means with the patient's code.