Hi, all: Happy Chinese New Year! The hard disk of our computor was out of function. After they renewed it, I lost all my previous mail box. Thanks for all who sent me their response and encouragement to my previous post. I'll be no mail for a few days. But I can still receive private mail. Chao-Huei Chao-Huei Chen, M.D. < [log in to unmask]> Department of Pediatrics,Taichung Veterans General Hospital 160,sec 3, Chung Kang Rd,Taichung 407, Taiwan,Fax 886 4 3591498