Update docstring on db_refs
Update docstring on db_refs

bgyori/indra,johnbachman/belpy,sorgerlab/belpy,sorgerlab/indra,sorgerlab/indra,sorgerlab/belpy,bgyori/indra,bgyori/indra,johnbachman/belpy,johnbachman/indra,johnbachman/belpy,johnbachman/indra,sorgerlab/belpy,johnbachman/indra,sorgerlab/indra