http://waynesword.palomar.edu/lmexer6.htm It is interesting to note that individuals with Down's syndrome (with three #21 chromosomes) also have the epicanthic fold.
Singers You'd Like to Perform at the 2012 London Olympics Opening Ceremonies ttp://www.the-top-tens.com/lists/singers-perform-london-olympics-opening-ceremonies-4.asp
(文献:The Great Human Diasporas: The History of Diversity and Evolution. 1995.. Luigi Luca Cavalii-Sforza and Francesco Cavalli-Sforza. Addison Wesley Publ. ISBN 0-201-44231-0)