1. Documentation of a case of tuberculosis in pre-Columbian America;Allison;American Review of the Respiratory Disease,1973
2. Porotic hyperostosis or osteoporosis symmetrica;Angel,1967
3. The origin and antiquity of syphilis;Baker;Current Anthropology,1988
4. The real history of syphilis;Brothwell;Science Journal,1970
5. Prehistoric tuberculosis in the Americas;Buikstra,1981