Figure 4.

Flow chart of screened and analysed studies. Based on China National Knowledge Infrastructure (CNKI), Wanfang database and PubMed searches performed with keywords “Ganoderma lucidum polysaccharide,” “Ji 731,” “Ji Sheng,” “Polysaccharide of Ganoderma lucidum Karst Injection” and “Ling Bao Duo Tang Zhu She Ye,” we pulled out all of the publications. After reviewing the description about the Ganoderma lucidum polysaccharides (GLPS) used, the methods, data, results and conclusions, we found 81 qualified studies of GLPS both in English and in Chinese spanning from 1973 to 2017