Retrieves historical versions of clinical trial registry entries from <https://ClinicalTrials.gov>. Package functionality and implementation for v 1.0.0 is documented in Carlisle (2022) <doi:10.1371/journal.pone.0270909>.
| Version: | 2.1.12 | 
| Imports: | assertthat, dplyr, httr, jsonlite, lubridate, magrittr, readr, rlang, stringr, tibble, purrr, tidyr | 
| Suggests: | testthat (≥ 3.0.0) | 
| Published: | 2025-08-29 | 
| DOI: | 10.32614/CRAN.package.cthist | 
| Author: | Benjamin Gregory Carlisle | 
| Maintainer: | Benjamin Gregory Carlisle <murph at bgcarlisle.com> | 
| BugReports: | https://github.com/bgcarlisle/cthist/issues | 
| License: | AGPL (≥ 3) | 
| URL: | https://github.com/bgcarlisle/cthist | 
| NeedsCompilation: | no | 
| Citation: | cthist citation info | 
| Materials: | README, NEWS | 
| CRAN checks: | cthist results | 
| Reference manual: | cthist.html , cthist.pdf | 
| Package source: | cthist_2.1.12.tar.gz | 
| Windows binaries: | r-devel: cthist_2.1.12.zip, r-release: cthist_2.1.12.zip, r-oldrel: cthist_2.1.12.zip | 
| macOS binaries: | r-release (arm64): cthist_2.1.12.tgz, r-oldrel (arm64): cthist_2.1.12.tgz, r-release (x86_64): cthist_2.1.12.tgz, r-oldrel (x86_64): cthist_2.1.12.tgz | 
| Old sources: | cthist archive | 
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