Items where Research Centre is "Sigma Research"
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Article
Weatherburn, P;
Reid, D;
(1995)
Survey shows unprotected sex is a common behaviour in bisexual men.
British Medical Journal, 311.
pp. 1163-1164.
ISSN 1756-1833
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC255107...