Reference
Biodas
spec
dsn (databases)
dsn
entry_points (chromosomes)
types (tracks)
hg15
hg13
hg12
mm3
mm2
examples
hg15 refGene chr6:5000000-6000000 (type&segment)
hg15 refGene chr6:5000000-6000000 (segment&type)
hg15 refGene chr6:5000000-6000000 (type;segment)
hg15 refGene chr6:5000000-6000000 (segment;type)