Table 3.

The definition of Three-Jiao in TTM image

Areas	Border
Upper Jiao	Upper border: the line of clavicles
	Lower border: the line of the 5th intercostal spaces
	Two sides: the anterior axillary lines
Middle Jiao	Upper border: the line of the 5th intercostal spaces
	Lower border: level with the umbilicus
	Two sides: the anterior axillary lines
Lower Jiao	Upper border: level with the umbilicus
	Lower border: level with the pubic symphysis