library("Gviz")
gen <- "hg19"
chr <- "chr2"
start <- 38290160
end <- 38303219
if(interactive()){
geneRtrack <-GeneReviewsTrack(gen,chrom,start,end,showId=TRUE)
plotTracks(geneRtrack, from = start, to = end)
} else {
data(GeneReviewTrack)
plotTracks(geneRtrack, from = start, to = end)
}
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