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. 2018 Sep 20;13(9):e0201702. doi: 10.1371/journal.pone.0201702

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© 2018 Göpel, Wirkner

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — A: Heart of Limulus polyphemus (lateral view, μCT). B: Heart of Hottentotta hottentotta (dorsal view, cLSM). C: Ostium and proximal part of cardiac artery of Euscorpius tergestrinus (lateral view, cLSM; red cyan anaglyph, use goggles), arrowhead indicates longitudinal fibers of the epicard. D: Ostium and proximal part of cardiac artery of Lasiodora parahybana (lateral view, cLSM), arrowhead indicates longitudinal fibers of the epicard. aa: anterior aorta; ca: cardiac artery; os: ostium; pa: posterior aorta.