Fig. 9From: A validated analysis pipeline for mass spectrometry-based vitreous proteomics: new insights into proliferative diabetic retinopathyPrincipal component analysis shows stratification by clinical phenotype. Scatter plot of the samples by first two principal components differentiated by TMT plex (shape) and phenotype (color); component variance noted in parentheses. Note that PCA considered only the subset of proteins measured in all samplesBack to article page