Fig. 2From: Vibrational spectroscopy identifies myocardial chemical modifications in heart failure with preserved ejection fractionPrincipal component analysis of Raman data. Scores of PC1, PC2 and PC3 for the left (a) and right (b) ventricles. Cumulative and individual variances of the first six components of PCA (c). Data were collected from heart tissues of six lean rats and six obese ratsBack to article page