Medication rule for treatment of functional dyspepsia: an analysis of traditional Chinese medicine literature based on China National Knowledge Internet Effect of method of soothing liver and regulating qi on expression of gastrin and somatostatin in hypothalamus, castric antrum of functional dyspepsia rats Therapeutic effect of Kaixiong Shunqi Capsula on functional dyspepsia Effect of Huoxiang Zhengqi Soft Capsule on gastric motility and gastrointestinal hormones in functional dyspepsia patients with spleen deficiency and predominant dampness