Modified from reference 5)
1: basal anterior A; 2: basal anteroseptal AS; 3: basal inferoseptal IS; 4: basal inferior I; 5: basal inferolateral IL; 6: basal anterolateral AL; 7: mid- anterior A; 8: mid-anteroseptal AS; 9 mid-inferoseptal IS; 10 mid-inferior I; 11 mid-inferolateral IL; 12 mid-anterolateral AL; 13: apical anterior A; 14: apical septal S; 15: apical inferior I; 16: apical lateral L; 17: apex