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Mary F. Feitosa , Eduardo E. Castilla , Maria da Graça Dutra , and Henrique Krieger 1998 Lack of Evidence of a Major Gene Acting on Postaxial Polydactyly in South America. American Journal of Medical Genetics 80:466–472.
Paul F. Healy , Jaime J. Awe , and Hermann Helmuth 1998 An Ancient Maya Multiple Burial at Caledonia, Cayo District, Belize. Journal of Field Archaeology 25:261–274.
Sarah A. Maas , and John F. Fallon 2005 Single Base Pair Change in the Long-Range Sonic hedgehog Limb-Specific Enhancer is a Genetic Basis for Preaxial Polydactyly. Developmental Dynamics 232:345–348.
María Luisa Martínez-Frías , Eva Bermejo , and Ana Cereijo 1992 Preaxial Polydactyly of Feet in Infants of Diabetic Mothers: Epidemiological Test of a Clinical Hypothesis. American Journal of Medical Genetics 42:643–646.
Kimmarie A. Murphy 1999 A Prehistoric Example of Polydactyly From the Iron Age Site of Simbusenga, Zambia. American Journal of Physical Anthropology 108:311–319.
Mark D. Murphey , James J. Choi , Mark J. Kransdorf , Donald J. Flemming , and Frances H. Gannon 2000 Imaging of Osteochondroma: Variants and Complications with Radiologic-Pathologic Correlation. Radiographics 20:1407–1434.
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J.T. Walker 1961 A Pedigree of Extra-Digit-V Polydactyly in a Batutsi Family. Annals of Human Genetics 25:65–68.
Hiroyuki Watanabe , Shinya Fujita , and Ichiro Oka 1992 Polydactyly of the Foot: An Analysis of 265 Cases and a Morphological Classification. Plastic and Reconstructive Surgery 89:856–877.
Estella Weiss-Krejci 2004 Mortuary Representations of the Noble House: A Cross-cultural Comparison between Collective Tombs of the Ancient Maya and Dynastic Europe. Journal of Social Archaeology 4:368–404.