Nothing

```
#' Median of Dutch references
#'
#' Returns the age-interpolated median of the Dutch references (van Buuren 2014).
#' The working range is 0-3 years. This function should
#' be called when the `key = "dutch"`.
#' @param t Decimal age, numeric vector
#' @return
#' A vector of length `length(t)` with the median of the Dutch references.
#' @note Internal function. Called by `dscore()`
#' @examples
#' dscore:::count_mu_dutch(0:2)
count_mu_dutch <- function(t) {
suppressWarnings(44.35 - 1.8 * t + 28.47 * log(t + 0.25))
}
#' Median of GCDG references
#'
#' Returns the age-interpolated median of the GCDG references (Weber
#' et al, 2019). The working range is 0-4 years. This function should
#' be called when the `key = "gsed"` or `key = "gcdg"`.
#' @param t Decimal age, numeric vector
#' @return
#' A vector of length `length(t)` with the median of the GCDG references.
#' @note Internal function. Called by `dscore()`
#' @examples
#' dscore:::count_mu_gcdg(0:2)
count_mu_gcdg <- function(t) {
suppressWarnings(47.65 - 3.05 * t + 26.70 * log(t + 0.19))
}
```

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