Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Wart clearance
RCT	45 adults with warts unsuccessfully treated for >3 months In review	Proportion of warts cured 18 weeks 64/114 (56%) with aminolaevulinic acid photodynamic treatment plus topical salicylic acid 47/113 (42%) with placebo photodynamic treatment plus topical salicylic acid	P <0.05	Effect size not calculated	aminolaevulinic acid photodynamic treatment plus topical salicylic acid
RCT	67 people with warts unsuccessfully treated for >12 months who had received keratolytic ointment under an occlusive dressing for 7 days In review	Proportion of warts cured 4 months 48/64 (75%) with aminolaevulinic acid photodynamic treatment three times 13/57 (23%) with placebo photodynamic treatment	P <0.01	Effect size not calculated	aminolaevulinic acid photodynamic treatment