Affiliation: | The Second Department of Internal Medicine, Hamamatsu University School of Medicine, 3600 Handa-cho, Hamamatsu, 431-31 Japan;The Third Department of Internal Medicine, Hamamatsu University School of Medicine, 3600 Handa-cho, Hamamatsu, 431-31 Japan;Department of Obstetrics and Gynaecology, Hamamatsu University School of Medicine, 3600 Handa-cho, Hamamatsu, 431-31 Japan |