We are grateful to all who have generously contributed to this website. Without their commitment and consideration, this website would likely not have matured.


Much of our work has been funded by The Wellcome Trust, BDF Newlife (UK), and St George's University. We are, as ever, extremely grateful for their support.


Text contributors

Harold Cross, MD, PhD, Professor and Director, Medical Student Teaching, University of Arizona, Tucson, Arizona.

Andrew Crosby, PhD, BDF Newlife Professor of Medical Genetics, St. George’s University of London, London.


two boys with motherGraphics

The panoramic photograph used on the website banner was supplied by Gary Thomas of Chesterland, Ohio.

The sketches of the Amish life were supplied by Terry L Troyer, CEO, the Troyer Group, from his book Amish Lifestyles, Illustrated, 1982. TLT publications, Goshen, Indiana.

The metabolic pathways graphics were constructed by Marc E. Tischler, PhD, Professor of Biochemistry, University of Arizona, College of Medicine, Tucson, Arizona, with editing assistance provided by Anindita Das.


Editing and maintenance

The following individuals have made important editorial and stylistic contributions:

Derek McKee, Joy Price, Rachelle Cook, Amisha Babla, Reem Shafi and John Longinotto.

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