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. 2015 Feb 17;27(3):216–221. doi: 10.1016/j.jsha.2015.02.005

Figure 2.

Figure 2

Bilateral injection showing a retrograde filling distal LAD from tortuous screw-like contralateral epicardial collaterals CC2 (Werner’s classification) [8], and septal collaterals CC1, originating from RCA. Abbreviations: LAD = left anterior descending; RCA = right coronary artery.