Top regions of copy number gains and losses in simple steatosis.

Start = first base-pair location in the copy number region, End = last base-pair location in the copy number region.起始位点（Start）为拷贝数区域（copy number region）内的首个碱基对（base-pair）位置，终止位点（End）为该拷贝数区域内的末位碱基对位置。