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/oak/stanford/groups/akundaje/marinovg/programs/samtools-0.1.18/samtools index S2_CTCF200_INPUT_1-GSM499650.36mers.unique.bam
/oak/stanford/groups/akundaje/marinovg/programs/samtools-0.1.18/samtools index S2_CTCF500_ChIPSeq_1_and_2-GSM499651.36mers.unique.bam
/oak/stanford/groups/akundaje/marinovg/programs/samtools-0.1.18/samtools index S2_CTCF500_INPUT_1-GSM499652.36mers.unique.bam