Causes of delay in door-to-balloon time in south-east Asian patients undergoing primary percutaneous coronary intervention. oleh Wen Jun Sim, An Shing Ang, Mae Chyi Tan, Wen Wei Xiang, David Foo, Kwok Kong Loh, Fahim Haider Jafary, Timothy James Watson, Paul Jau Lueng Ong, Hee Hwa Ho