Table 2.

Frequency statistics of herbs appeared in six trials and ten patents.

Scientific name (with the author name)	Chinese name	Frequency
Lonicera japonica Thunb.	Jinyinhua	10
Ophiopogon japonicus Ker Gawl.	Mai dong	10
Glycyrrhiza uralensis Fisch.	Gancao	9
Platycodon grandiflorum A. DC.	Jie Geng	8
Chrysanthemum indicum L.	Yejuhua	6
Stereulia lychnophora Hance.	Pangda Hai	6
Mentha haplocalyx Briq.	Bohe	5
Scrophularia ningpoensis Hemsl.	Xuan Shen	5
Lilium brownie F. E. Brown var.	Baihe	4
Lophatherum gracile Brongn.	Danzhuye	4
Citrus reticulata Blanco.	Chenpi	4
Mormordica grosvenorii Swingle.	Luohanguo	3
Canarium album Raeusch.	Ganlan	3
Prunus mume Sieb.et Zucc.	Wumei	3
Rehmannia glutinosa Libosch.	Sheng Di Huang	2
Scutellaria baicalensis Georgi.	Huangqin	2