https://mkanai.r-universe.dev/GCSanndataRhttps://mkanai.r-universe.dev/api/packages/GCSanndataRhttps://mkanai.r-universe.dev/GCSanndataR/GCSanndataR.pdfhttps://mkanai.r-universe.dev/GCSanndataR/doc/manual.htmlhttps://mkanai.r-universe.dev/GCSanndataR/citationhttps://mkanai.r-universe.dev/GCSanndataR/citation.txthttps://mkanai.r-universe.dev/GCSanndataR/citation.cff