I think till now nobody has given an acceptable reason of Baidianfeng. But ... ...
-heater(肠子 ED城在呼唤);
2002-1-8{193}(#327456@0)
But I know bad mood and too much vitamin C can make it much worse. So avoiding taking too much VC, and being happy all the time might be good therapies. BTW, white people also suffer from BDF?