PT - JOURNAL ARTICLE AU - Schott, G D TI - Engraved hexagons on an Ice Age ivory: a neurological perspective on an anthropological debate AID - 10.1136/jnnp-2013-307044 DP - 2014 Oct 01 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - 1174--1176 VI - 85 IP - 10 4099 - http://jnnp.bmj.com/content/85/10/1174.short 4100 - http://jnnp.bmj.com/content/85/10/1174.full SO - J Neurol Neurosurg Psychiatry2014 Oct 01; 85