Guyatt GH, Sackett DL, Sinclair JC, Hayward R, Cook DJ, Cook RJ (December 1995). "Users' guides to the medical literature. IX. A method for grading health care recommendations. Evidence-Based Medicine Working Group". JAMA. 274 (22): 1800–1804. doi:10.1001/jama.1995.03530220066035. PMID7500513.
Paul, C.; Gallini, A.; Archier, E.; et al. (2012). "Evidence-Based Recommendations on Topical Treatment and Phototherapy of Psoriasis: Systematic Review and Expert Opinion of a Panel of Dermatologists". Journal of the European Academy of Dermatology and Venereology. 26 (Suppl 3): 1–10. doi:10.1111/j.1468-3083.2012.04518.x. PMID22512675. S2CID36103291.
Wilson, Mark C (1995). "Users' guides to the medical literature. VIII. How to use clinical practice guidelines. B. what are the recommendations and will they help you in caring for your patients? The evidence-based medicine working group". JAMA. 274 (20): 1630–1632. doi:10.1001/jama.1995.03530200066040. PMID7474251. S2CID8593521.
Hadorn, David C; Baker, David; Hodges, James S; Hicks, Nicholas (1996). "Rating the quality of evidence for clinical practice guidelines". Journal of Clinical Epidemiology. 49 (7): 749–754. doi:10.1016/0895-4356(96)00019-4. PMID8691224.
Atkins, D; Best, D; Briss, P. A; Eccles, M; Falck-Ytter, Y; Flottorp, S; Guyatt, G. H; Harbour, R. T; Haugh, M. C; Henry, D; Hill, S; Jaeschke, R; Leng, G; Liberati, A; Magrini, N; Mason, J; Middleton, P; Mrukowicz, J; O'Connell, D; Oxman, A. D; Phillips, B; Schünemann, H. J; Edejer, T; Varonen, H; Vist, G. E; Williams Jr, J. W; Zaza, S; GRADE Working Group (2004). "Grading quality of evidence and strength of recommendations". BMJ. 328 (7454): 1490. doi:10.1136/bmj.328.7454.1490. PMC428525. PMID15205295.
Guyatt GH, Sackett DL, Sinclair JC, Hayward R, Cook DJ, Cook RJ (December 1995). "Users' guides to the medical literature. IX. A method for grading health care recommendations. Evidence-Based Medicine Working Group". JAMA. 274 (22): 1800–1804. doi:10.1001/jama.1995.03530220066035. PMID7500513.
Paul, C.; Gallini, A.; Archier, E.; et al. (2012). "Evidence-Based Recommendations on Topical Treatment and Phototherapy of Psoriasis: Systematic Review and Expert Opinion of a Panel of Dermatologists". Journal of the European Academy of Dermatology and Venereology. 26 (Suppl 3): 1–10. doi:10.1111/j.1468-3083.2012.04518.x. PMID22512675. S2CID36103291.
Wilson, Mark C (1995). "Users' guides to the medical literature. VIII. How to use clinical practice guidelines. B. what are the recommendations and will they help you in caring for your patients? The evidence-based medicine working group". JAMA. 274 (20): 1630–1632. doi:10.1001/jama.1995.03530200066040. PMID7474251. S2CID8593521.
Hadorn, David C; Baker, David; Hodges, James S; Hicks, Nicholas (1996). "Rating the quality of evidence for clinical practice guidelines". Journal of Clinical Epidemiology. 49 (7): 749–754. doi:10.1016/0895-4356(96)00019-4. PMID8691224.
Atkins, D; Best, D; Briss, P. A; Eccles, M; Falck-Ytter, Y; Flottorp, S; Guyatt, G. H; Harbour, R. T; Haugh, M. C; Henry, D; Hill, S; Jaeschke, R; Leng, G; Liberati, A; Magrini, N; Mason, J; Middleton, P; Mrukowicz, J; O'Connell, D; Oxman, A. D; Phillips, B; Schünemann, H. J; Edejer, T; Varonen, H; Vist, G. E; Williams Jr, J. W; Zaza, S; GRADE Working Group (2004). "Grading quality of evidence and strength of recommendations". BMJ. 328 (7454): 1490. doi:10.1136/bmj.328.7454.1490. PMC428525. PMID15205295.
Paul, C.; Gallini, A.; Archier, E.; et al. (2012). "Evidence-Based Recommendations on Topical Treatment and Phototherapy of Psoriasis: Systematic Review and Expert Opinion of a Panel of Dermatologists". Journal of the European Academy of Dermatology and Venereology. 26 (Suppl 3): 1–10. doi:10.1111/j.1468-3083.2012.04518.x. PMID22512675. S2CID36103291.
Wilson, Mark C (1995). "Users' guides to the medical literature. VIII. How to use clinical practice guidelines. B. what are the recommendations and will they help you in caring for your patients? The evidence-based medicine working group". JAMA. 274 (20): 1630–1632. doi:10.1001/jama.1995.03530200066040. PMID7474251. S2CID8593521.
Khan, K.S., et al. (2001). CRD Report 4. Stage II. Conducting the review. phase 5. Study quality assessment. York, UK: Centre for Reviews and Dissemination, University of York. Retrieved July 20, 2007 from http://www.york.ac.uk/inst/crd/pdf/crd_4ph5.pdf