Fig. 1From: Cardiac cephalalgia: a case series of four patients and updated literature reviewCoronary artery segments according to the American Heart Association classification [11]. RCA, right coronary artery; LCA, left coronary artery; LMT, left main trunk; LAD, left anterior descending coronary artery; LCx, left circumflex coronary artery; AV, atrioventricular nodal artery; PD, posterior descending coronary arteryBack to article page