1. Volume 362, Issue 9401, Pages 2039-2044 (December 2003)
Frequency of venous thromboembolism in low to moderate risk long distance air travellers: the New Zealand Air Traveller's Thrombosis (NZATT) study 
RJ Hughes, FRACP, RJ Hopkins, BN, S Hill, MBChB, M Weatherall, FRACP, N Van de Water, PhD, M Nowitz, FFRad (D), D Milne, FRANZCR, J Ayling, DipNurs, M Wilsher, MD, Prof R Beasley 
The Lancet 
Volume 362, Issue 9401, Pages (December 2003)
DOI: /S (03)
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2. Figure 1 Algorithm for investigating participants
D-dimer measurement: positive value >500 ng/L. *Three participants underwent ventilation/perfusion scanning instead of CT pulmonary
The Lancet  , DOI: ( /S (03) )
Copyright © 2003 Elsevier Ltd Terms and Conditions