TABLE 4.

Analysis of Chinese herbal medicine natures, flavors, and channel entries in the included studies.

Medicinal nature	Freq	Pct.(%)	Medicinal flavor	Freq	Pct.(%)	Channel entry	Freq	Pct.(%)
Warm	92	38.98	Bitter	132	33.93	the foot jueyin liver channel	181	30.27
Cold	79	33.47	Sweet	111	28.53	the hand shaoyin heart channel	93	15.55
Neutral	63	26.69	Acrid	103	26.48	the foot taiyin spleen channel	88	14.72
Hot	2	0.85	Salty	23	5.91	the foot shaoyin kidney channel	80	13.38
			Sour	12	3.08	the hand taiyin lung channel	49	8.19
			Astringent	8	2.06	the foot yangming stomach channel	36	6.02
						the hand yangming large intestine channel	22	3.68
						the foot taiyang bladder channel	19	3.18
						the foot shaoyang gallbladder channel	17	2.84
						the hand taiyang small intestine channel	6	1.00
						the hand jueyin pericardium channel	4	0.67
						the hand shaoyang san jiao channel	3	0.50

Abbreviation Freq: Frequency; Pct.: percentage.