Study	Reason for exclusion
Bergman	It is not RCT
Bringel	It is not RCT
Brodman	It is not RCT
Cardamakis	It is penile intraepithelial neoplasia
Cardamakis 1	It was not contact with author possible concerning randomisation.
Djawari	It is not RCT
Dretler	It is not RCT
Emokpare	It is not RCT
Ferenczy	It is not RCT
Halasz	It is not genital warts
Hursthouse	It is not genital warts
Husseinzadeh	It is use of 5‐FU after treatment
Klutke	It is treatment of recurrent lesion with Interferon
Krebs	It is not RCT
Krebs 1	It is not RCT
Krebs 2	Include 2 immunosuppressed patients
Krebs 3	It is not RCT
Krebs 4	5‐FU is used after one or treatment for preventing recurrence
Lopes	It is neither RCT nor Genital Warts
Moore	Inadequate methodology
Netto Junior	It is not RCT
Pride	It is not RCT
Schimidt	It is not genital warts
Stefanon	It is not RCT
von Krough	It is not RCT
Zarcone	It is not RCT