Because purebred dogs inevitably all come from the very same small group of dogs who were originally used to establish the breed, the coefficient of inbreeding often goes up as years pass. (breedingbusiness.com)
Although I looked hard in the first 121 people, if I couldn't find co-authorship, or company pictures that showed people in same small group, it was hard to be sure of some connections that seemed plausible. (desmogblog.com)
However, most use the same small group of loyal customers whenever a reference, speaking opportunity, PR request or case study is required. (inc.com)