Li, Yueh-Chun
Pan, Yi-Ju
Tsai, Fuu-Jen
Lin, Chyi-Chyang
Funding for this research was provided by:
National Science Council, Taiwan (NSC 91-2320-B-040-037)
National Health Research Institute, Taiwan (NHRI-EX92-9207 SI)
Bureau of Health Promotion, Department of Health, Taiwan (BH92-GC03-1)