1. Lagen om allmän försäkring (In Swedish) (Law on general social insurance). 1962
2. Den nya läkemedelsförmånen (In Swedish) (The new drug-cost refunding system) . 2000, [
http://www.regeringen.se/sb/d/108/a/2825;jsessionid=aYPn3YgNUUq9
]
3. Wahlstrom R, Alexanderson K: Chapter 11. Physicians' sick-listing practices. Scand J Public Health Suppl. 2004, 222-255. 10.1080/14034950410021916.
4. WHO: International classification of functioning, disability and health. 2001, Geneva
5. Krakau I: Severity of illness and diagnoses in a Swedish general practice population. Fam Pract. 1991, 8 (1): 28-31. 10.1093/fampra/8.1.28.