Skelton J. 1994. ‘Analysis of the structure of original
research papers: an aid to writing original papers for
publication’.Br. J. Gen. Pract. 44 : 455–459.
Song F, Eastwood A, Gilbody S, Duley L. 1999.
‘The role of electronic journals in reducing publi-
cation bias’. Med. Inform. Internet Med. 24 :
223–229.
Sykes R. 1998. ‘Being a modern pharmaceutical com-
pany’.Br. Med. J. 317 : 1172–1180.
The Subcutaneous Sumatriptan International Study
Group. 1991. ‘Treatment of migraine attacks with
sumatriptan’.New Eng. J. Med. 325 : 316–321.
Tonks A. 1999. ‘Registering clinical trials’.Br. Med.
J. 319 : 1565–1568.
REFERENCES 573