\item{atc_code}{a character or character vector with ATC code(s) of antibiotic(s)}
\item{property}{property of an ATC code. Valid values are \code{"ATC code"}, \code{"Name"}, \code{"DDD"}, \code{"U"} (\code{"unit"}), \code{"Adm.R"} en \code{"Note"}.}
\item{administration}{type of administration, see \emph{Details}}
\item{url}{url of website of the WHO. The sign \code{\%s} can be used as a placeholder for ATC codes.}
Gets data from the WHO to determine properties of an ATC (e.g. an antibiotic) like name, defined daily dose (DDD) or standard unit. \strong{This function requires an internet connection.}