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(a) SAM images of rat aorta (200 × 200 μm) prior to any fixation or staining. Lamellar (L) and inter-lamellar (IL) regions of the aorta are highlighted. (b) The same section as shown in (a) following polarized light microscopy of Picro-sirius red (PSR) stained and hence birefringent collagen fibres. Scale bar 50 μm.
