https://tslocz.r-universe.dev/hettreatreghttps://tslocz.r-universe.dev/api/packages/hettreatreghttps://tslocz.r-universe.dev/hettreatreg/hettreatreg.pdfhttps://tslocz.r-universe.dev/hettreatreg/doc/manual.htmlhttps://tslocz.r-universe.dev/hettreatreg/citationhttps://tslocz.r-universe.dev/hettreatreg/citation.txthttps://tslocz.r-universe.dev/hettreatreg/citation.cff