Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Psoriasis severity
Systematic review	People with psoriasis (severity not reported), number of people in analysis not reported 2 RCTs in this analysis	Psoriasis severity scores 6–8 weeks with calcipotriol with coal tar Absolute results not reported	SMD –0.91 95% CI –1.36 to –0.46	Effect size not calculated	calcipotriol