1. Global Programme on Evidence for Health Policy: Guidelines for WHO Guidelines. Geneva: World Health Organisation, 2003 (EIP/GPE/EQC/2003.1)
2. Panisett U: A review of WHO recommendations published in 2005.
3. Guyatt G, Yayward R, Richardson WS, Green L, Wilson M, Sinclair J: Moving from evidence to action. Users' Guides to the Medical Literature. Edited by: Guyatt G, Rennie D. 2002, Chicago: AMA Press, 175-99.
4. Institute of Medicine: Guidelines for Clinical Practice: From Development to Use. 1992, Washington, DC: National Academy Pr
5. Shaneyfelt TM, Mayo-Smith MF, Rothwangl J: Are guidelines following guidelines? The methodological quality of clinical practice guidelines in the peer reviewed medical literature. JAMA. 1999, 281: 1900-5. 10.1001/jama.281.20.1900.