Wong Edward Ho Chung, Hui Andrew C, Mok Vincent C, Leung Howan, Chan Rickjason C, Wong Ka S, Kwan Patrick K
Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, China.
Lancet. 2008 Aug 2;372(9636):418. doi: 10.1016/S0140-6736(08)61163-0.