1. Tall og fakta 2000. Legemidler og helsevesen. [Figures and facts 2000. Drugs and health care]. Norwegian Association of Pharmaceutical Manufacturers. Oslo, 2000. p 1–46.
2. Legemiddleforbruket I Norge [Drug consumption in Norway] 1994–1998. Norsk Medisinaldepot. Oslo, 1999. p. 41 and 129–138.
3. Nordic statistics on Medicines 1993–1995. Nordiska Lakemedelsnamnden. Upssala, 1996. p. 92–95.