Particulate matter(PM) plays an important role in air pollution, especially in China. European and American researchers conducted several cohort-based studies t
The survival of most patients with both unresectable hepatic and pulmonary metastases of colorectal cancer is poor. In this retrospective study, we investigated
Nasopharyngeal carcinoma(NPC) is common in South China. Although regional epidemiological data on NPC in China is available, national epidemiological data have