This is one of those journals where you must register to gain access.
You can read the original article to which our reply was directed here:

http://www.thelancet.com/journals/la...064-9/fulltext

Full text for the above is available.

Our reply, however, allows one to see the introduction, then requires $$$ in order to see the article in its entirety . Click here:
http://www.thelancet.com/journals/la...277-6/fulltext

There are some other good publications credited to people from this forum who have been strong advocates.
Perry Cohen has been the first author in many of these, so do a search using his name for more.

Thanks for your interest
Peg