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Pre-miRNA	Pre-Accession	Mat-miRNA	Mat-Accession
hsa-let-7a-1	MI0000060	hsa-let-7a-5p	MIMAT0000062
hsa-let-7a-2	MI0000061	hsa-let-7a-5p	MIMAT0000062
hsa-let-7a-3	MI0000062	hsa-let-7a-5p	MIMAT0000062