Mouse Genome Informatics, The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04605, USA. adiehl@informatics.jax.org|Mouse Genome Informatics, The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04605, USA. adiehl@informatics.jax.org|Mouse Genome Informatics, The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04605, USA. adiehl@informatics.jax.org|Mouse Genome Informatics, The Jackson Laboratory, 600 Main Street, Bar Harbor, ME 04605, USA. adiehl@informatics.jax.org