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Orifices of the ASA. (A) Number of ASA orifices per aorta. Asterisk indicates aortae with strictly segmentally and symmetrically originating T3-L4 ASAs. (B,C) Aorta with removed anterior wall. Endoluminal view. ASA orifices labeled with headpins. Note that there are 28 ASA orifices in (B) and 23 in (C). RAR, right renal artery; ARA, accessory renal artery. Scale bar, 1 cm.
