Helen Barratt

Website of the week: Virtual universities

Helen Barratt, 2001 .

Does the type of competing interest statement affect readers' perceptions of the credibility of research? Randomised trial

Sara Schroter, Richard Smith, Julie Morris, 2004, BMJ : British Medical Journal.

Scions made simple

Helen Barratt, Trevor Jackson, 2001, BMJ : British Medical Journal.