Fig. 1From: Influence of different sample preparation strategies on the proteomic identification of stress biomarkers in porcine salivaFlowchart of the sample preparation protocols used prior to 2DE-MS analysis for the identification of stress biomarker. SP1: sample preparation 1 (untreated saliva), SP2: sample preparation 2 (glycoprotein enrichment), SP3: sample preparation 3 (dynamic range compression)Back to article page