... main chains and 1-4 branchings, and the more common 1-3 main chains and 1-6 branchings.18 This fraction also is highly active in vitro and in animal models of cancer, although activity in these ... hospitals in Shanghai, Beijing, and other areas in China, with a total 189 patients The double-blind study used the same doses and test materials as the previous study, and examined PSP against the ... type of study is limited because the patient groups are drawn from different populations; nonetheless, the findings are marked and support the use of PSK in breast cancer In 1992, a large randomized...