1. Ministry of Health Ontario Guidelines for Economic Analysis of Pharmaceutical Products. Ministry of Health, Toronto, 1994.
2. Commonwealth of Australia. Guidelines for the Pharmaceutical Industry on Preparation of Submissions to the Pharmaceutical Benefits Advisory Committee: Including Submissions Involving Economic Analyses. Australian Government Printing Office, Canberra, 1995.
3. Norwegian Medicines Control Authority. Norwegian Guidelines for Pharmacoeconomic Analysis in Connection with Application for Reimbursement. Norwegian Medicines Control Authority (SLK), Oslo, 1995.
4. Sickness Funds Council. Dutch Guidelines for Pharmacoeconomic Research. Ziekenfondsraad, Amstelveen, 1999.
5. National Institute of Clinical Excellence http://www.nice.org.uk, Accessed February 2002.