https://cran.r-universe.dev/rplechttps://cran.r-universe.dev/api/packages/rplechttps://cran.r-universe.dev/rplec/rplec.pdfhttps://cran.r-universe.dev/rplec/doc/manual.htmlhttps://cran.r-universe.dev/rplec/citationhttps://cran.r-universe.dev/rplec/citation.txthttps://cran.r-universe.dev/rplec/citation.cffhttps://cran.r-universe.dev/rplec/doc/placental_aging_analysis.Rmdhttps://cran.r-universe.dev/articles/rplec/placental_aging_analysis.html