Please see this letter to the editor from Dr. Graver critiquing the article by Willis et al on alleged false positives on the WMT:-
http://localhost/greens/DISCUSSIONS/RECENT_PAPERS_2010/Willis_critique_by_Graver.pdf
The above link has been posted with the written consent of the Editor of the journal “Military Medicine: International Journal of AMSUS” (Association of Military Surgeons of the United States). Thank you to the Editor and staff of MM.
For more details of the three cases presneted by Willis et al, please see my own critique, which is similar in many ways to the letter by Dr. Graver:-
http://localhost/greens/DISCUSSIONS/RECENT_PAPERS_2010/CRITIQUE_WILLIS_by_Geeen.doc