I HAVE always opined that the large presence of comedy in Guyanese politics keeps a commentator mentally agile. There are times when the comedy is so ...

College of Materials Science and Engineering, Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, Hunan University, Changsha 410082, P.R. China College of Materials ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Epidemiological studies indicate that lifestyle and dietary habits are associated with ...

Ulcerative colitis (UC) is a chronic relapsing inflammatory disease characterized by progressive mucosal damage. The incidence rate of UC is rising rapidly, which makes the burden of medical resources ...

Department of General Surgery, Tianjin Union Medical Center, Tianjin 300122, P. R. China These authors contributed equally to this work.