Affiliation: | (1) Department of Paediatrics, Chang Gung Memorial Hospital Keelung, 222, Mai Chin Road, Keelung 204, Taiwan e-mail: amy6129@adm.cgmh.com.tw Tel.: +886-02-24313131; Fax: +886-02-24335342, TW;(2) Department of Paediatrics, Chang Gung Childrens Hospital, Keelung, Taiwan, TW |