A.
5 cun directly above the midpoint of the anterior hairline, at the midpoint of the line connecting the apexes of the two auricles.
B.
1 cun directly above the midpoint of the posterior hairline, directly below the external occipital protuberance, in the depression between m. tzius of both sides.
C.
0.5 cun directly above the midpoint of the anterior hairline.
D.
On the forehead, at the midpoint between the two medial ends of the eyebrow.