Identifying Potential Clinical Syndromes of Hepatocellular Carcinoma Using PSO-Based Hierarchical Feature Selection Algorithm

Table 5

The details of three syndromes.

Syndrome	Symptoms	The number of level of positive symptom
Emotion	Irritability	4
	Depression	3
	Sigh	3
Cardiothoracic condition	Tightness in the chest	4
	Shortness of breath	3
	Palpitations	3
	Pain in the chest	3
Diet	Anorexia	4
	Tired of greasy	4
	Nausea	3
	Hiccups	3
	Acid reflux	3
	Water reflux	3
	Gastric discomfort	2