Efficacy of Weikang Pian in Patients with Functional Dyspepsia: A Double-Blind, Randomized, Placebo-Controlled Clinical Trial

Figure 5

Fingerprint analysis of WKP with ultra-performance liquid chromatography (UPLC). (a) the methanol; (b) the standard solution; (c) WKP; (d) percentage composition.

(a)

(b)

(c)

(d)