Correspondence to: Dr Mary Bond PenTAG, Peninsula Medical School, University of Exeter, Veysey Building, Salmon Pool Lane, Exeter EX2 4SG, Devon, UK; mary.bond{at}pms.ac.uk The negative psychological ...

Correspondence to Dr Paul Fontelo, National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894, USA; fontelo{at}nlm.nih.gov In 1998, the ‘Evidence Cart’ was introduced to provide decision ...