1. Early Skeletons from Tranquility, California;Angel,1966
2. Essentials of Epidemiology in Public Health;Aschengrau,2003
3. Degenerative joint disease in hunter–gatherers and agriculturalists from the Southeastern United States;Bridges;American Journal of Physical Anthropology,1991
4. Prehistoric arthritis in the Americas;Bridges;Annual Review of Anthropology,1992
5. The evolutionary context of chronic degenerative diseases;Boyd Eaton,1999