Oxman A.D. (1994): Systematic Reviews: Checklist for review articles. British Medical Journal 309: 684–685.

Cook D.J. , & Mulrow C.D. , & Haynes R.B. (1997): Systematic Reviews: Synthesis of Best Evidence for Clinical Decisions. Annals of Internal Medicine 126: 376–380.

Hansen L.J. , & de Fine Olivarius N. , & Beich A. , & Barfod S. (2001): Screening for storforbrugere af alkohol i almen praksis. Ugeskrift for læger 163: 2358–2361.

Interventions for treating headlice. Cochrane Review, 14 Jan 1999. In: The Cochrane Library. Oxford: Update Software.