TY - RPRT TI - Animal evolution: when did the 'Hox system' arise? AU - Chris T Amemiya AU - Günter P Wagner PY - 2006 DO - 10.1016/j.cub.2006.06.051 UR - https://pubmed.ncbi.nlm.nih.gov/16860733/ ID - 16860733 ER -