Zhong Nan Shan, Zeng Guang Qiao
Guangzhou Institute of Respiratory Disease, First Affiliated Hospital, Guangzhou Medical College, 51 Yanjiang Road, Guangzhou, China 510120.
Am J Respir Crit Care Med. 2003 Jul 1;168(1):7-9. doi: 10.1164/rccm.200305-707OE. Epub 2003 May 28.