Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:Advantages: Good cosmetic result by forming a cylindrical phallus, creation of an acceptable sensate phallus,(25) providing good sensory nerves for its neurovascular pedicle,(12) excellent phallus sensation if the nerve is well-functioned,(54) and well-vascularized neourethra that allows voiding from a standing position.(29,47)
Category: