Objective To study the risk environmental and psycho-social factors associated to prostate cancer(PCa) in Chinese population. Methods 250 PCa patients and 500 c
<正>Reliable transport of Campylobacter jejuni isolates is critical to microbial epidemiology research,especially in developing countries without a good tempera
<正>Ionizing radiation(IR)is a potential carcinogen.Evidence for the carcinogenic effect of IR radiation has been shown after long-term animal investigations an