Figure 3
From: Saliva changes in composition associated to COVID-19: a preliminary study

Source: Metaboanalyst 5.0 (https://www.metaboanalyst.ca).
Variable Importance in Projection (VIP) represents the contribution score of the proteins that mostly contribute to the differentiation between COVID-19 and control group. The red and blue boxes on the right indicate the relative amounts of the corresponding protein in each group under study.