Check the included studies of a systematic review or meta-analysis.

Usage

check_included_studies(
  ids,
  sources = getOption("retraction.sources", "xera"),
  offline = FALSE,
  flag_nature = c("Retraction", "Expression of Concern"),
  ...
)

Arguments

ids: A character vector of DOIs or PMIDs for the included studies. Duplicates are collapsed and counted once.
sources, offline, flag_nature, ...: Passed to check_dois().

Value

A retraction_review (a retraction_result with n_included, n_unique, n_checked, n_unchecked, n_possible, and n_retracted attributes).

Examples

# \donttest{
check_included_studies(c("10.1016/S0140-6736(97)11096-0",
                         "10.1136/bmj.331.7531.1512"))
#> ✖ 1/2 included studies retracted or flagged. Pooled estimates may be affected.
#> 
#> ── retraction: 2 references checked ────────────────────────────────────────────
#> ✖ 1 retracted or flagged
#> ✔ 1 clean
#> 
#> ── Flagged citations ──
#> 
#> • 10.1016/s0140-6736(97)11096-0: Ileal-lymphoid-nodular Hyperplasia,
#> Non-specific Colitis, and Pervasive Developmental Disorder in Children
#> (retracted 2010-02-06; source: xera)
#> 
#> ℹ Full table: `as.data.frame(x)` or `tibble::as_tibble(x)`.
# }