Last month,I went to Chinese "sex for men" doctor Chen zhenzhong's office,Chen
-baoanlu1(bao);
2005-4-21{198}(#804@30)
He makes advertising in "Sing Tao Daily" newspaper, (416)880-9558. He told me,for age 35-50 group chinese man,2-4 times per week is normal. and for every time, stay inside 10-25 minutes is mormal.
I believe this is apparently commercial advertising. Th reality should be much lower than this.
-dazhonghua(datonghua);
2005-4-25(#864@30)