Address correspondence to Chien-Ching Hung, Department of Internal Medicine, National Taiwan University Hospital, 7 Chung-Shan South Road, Taipei 100, Taiwan. E-mail:
Authors’ addresses: Jih-Jin Tsai, Liang-Yin Ke, and Jeng-Hsien Yen, 100 Tzyou 1st Road, Kaohsiung, Taiwan 807. Hsin-Yun Sun, Keh-Sung Tsai, Sui-Yuan Chang, Szu-Min Hsieh, Chien-Ching Hung, and Shan-Chwen Chang, 7 Chung-Shan Road, Taipei, Taiwan 100. Chin-Fu Hsiao, 35 Keyan Road, Zhunan Town, Miaoli County, Taiwan 350.
Acknowledgment: We thank Dr. Victor L. Yu of University of Pittsburgh for review of the manuscript.
Financial support: This study was supported by the Center for Disease Control, Department of Health, Executive Yuan, Taiwan (DOH94-DC-1017).
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