Kessel, AS; Watts, CJ; (2001) Evaluation of the unlinked anonymous prevalence monitoring programme for HIV in England and Wales: science, ethics and health policy. Medical science monitor, 7 (5). pp. 1052-63. ISSN 1234-1010 https://researchonline.lshtm.ac.uk/id/eprint/17720 Full text not available from this repository.