Old Order Amish

Kelsoe JR, Ginns El, Egeland JA, et al. Re-evaluation of the linkage relationship between chromosome lip loci and the gene for bipolar affective disorder in the Old Order Amish. Nature 1989 342 238-242. 

Societies determine what technologies are developed. Social customs and religious beliefs influence what products are developed and used by people in a given society. For example, the Old Order Amish form a society that does not use certain kinds of technology, including automobiles and electricity (Figure 2-19). 

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