title: Slum upgrading review: methodological challenges that arise in systematic reviews of complex interventions.
authors: Support Unit for Research Evidence (SURE), Information Services,  Cardiff University, Cardiff,  UK.
authors: Ruth
authors: R
authors: Turley
authors: Ruhi
authors: R
authors: Saith
authors: Nandita
authors: N
authors: Bhan
authors: Jodie
authors: J
authors: Doyle
authors: Kirsty
authors: K
authors: Jones
authors: Elizabeth
authors: E
authors: Waters
mesh_terms: D003141:Communicable Diseases / Q000453:epidemiology; D005069:Evaluation Studies as Topic; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D015994:Incidence; D011204:Poverty Areas; D012107:Research Design / Q000592:standards; D012959:Socioeconomic Factors; D000078202:Systematic Reviews as Topic