Reader Comments (3)

Post a new comment on this article

  • 0 Responses
    22 Oct 2007
    13:53 GMT
    Most Recent
    Same pattern of the prevalence in China was found Posted by Mike1983 on 22 Oct 2007 at 13:53 GMT
  • 0 Responses
    06 Aug 2007
    22:25 GMT
    Most Recent
    Posted by jami on 06 Aug 2007 at 22:25 GMT
  • 0 Responses
    07 May 2007
    10:02 GMT
    Most Recent
    So what? Posted by muradkhan on 07 May 2007 at 10:02 GMT