1. Prehistoric trepanation in the Cuzco region of Peru: A view into an ancient Andean practice;Andrushko;Am J Physical Antropol,2008
2. Celtic trepanation in Austria;Breitwieser,2003
3. Cranial trephination in Iran;Eftekhar;J Neurosurgery,2007
4. A trephinated skull from Iran;Mallin;Bull N Y Acad Med,1976
5. An example of cranial trepanation dating to Middle Bronze age from Ebla, Syria;Mogliazza;J Anthropol Sci,2009