A traditional, scholarly, critical literature review:
Scambler, G. (2009) 'Health-related stigma', Sociology of Health and Illness, 31(3): 441–455

A 'systematic' review of quantitative studies:
Horrocks, S., Anderson, E. and Salisbury, C. (2002) 'Systematic review of whether nurse practitioners working in primary care can provide equivalent care to doctors', British Medical Journal, 324: 819–823

A 'systematic review' of qualitative studies:
Morton, R.L., Tong, A., Howard, K., Snelling, P. and Webster, A.C. (2010) 'The views of patients and carers in treatment decision making for chronic kidney disease: systematic review and thematic synthesis of qualitative studies', British Medical Journal, 340: c112

An analysis and critique of the systematic reviewing movement:
Moreira, T. (2007) 'Entangled evidence: knowledge making in systematic reviews in healthcare', Sociology of Health and Illness, 29(2): 180–197