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+SAM (Sequence Alignment/Map) format is a generic format for storing
+large nucleotide sequence alignments. SAM aims to be a format that:
+
+- Is flexible enough to store all the alignment information generated
+ by various alignment programs
+- Is simple enough to be easily generated by alignment programs or
+ converted from existing alignment formats
+- Is compact in file size
+- Allows most of operations on the alignment to work on a stream
+ without loading the whole alignment into memory
+- Allows the file to be indexed by genomic position to efficiently
+ retrieve all reads aligning to a locus.
+
+SAM Tools provide various utilities for manipulating alignments in the
+SAM format, including sorting, merging, indexing and generating
+alignments in a per-position format.
+
+Publication:
+Li H.*, Handsaker B.*, Wysoker A., Fennell T., Ruan J., Homer N.,
+Marth G., Abecasis G., Durbin R. and 1000 Genome Project Data
+Processing Subgroup (2009) The Sequence alignment/map (SAM) format and
+SAMtools. Bioinformatics, 25, 2078-9. [PMID: 19505943]