Reference

Search for REF=[8487].
8487
Xu, J., Mahowald, M. A., Ley, R. E., Lozupone, C. A., Hamady, M., Martens, E. C., Henrissat, B., Coutinho, P. M., Minx, P. and others.
Evolution of symbiotic bacteria in the distal human intestine.
PLOS Biol. 5: e156, 2007.
PMID: 17579514.
DOI: 10.1371/journal.pbio.0050156.