@book{ BC02228482, author = "Becker, Ulrich and Kingreen, Thorsten and Axer, Peter", title = "SGB V : gesetzliche Krankenversicherung : Kommentar", publisher = "C.H. Beck", year = "2020", edition = "7., neu bearbeitete Aufl", URL = "https://ci.nii.ac.jp/ncid/BC02228482" }