In developing countries ammonium urate stones occur endemically, especially in children.

不发达国家中，尿酸铵结石是地方性流行，特别是在儿童。

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Moreover, as the Reinharts show, a big part of the problem is that capital flows are endemically boom-bust: money floods in and out.

ECONOMIST: Economics focus

The northern part of South America has been sporadically or endemically affected by foot-and-mouth outbreaks in the past year, with northern areas of Brazil, especially, recently in the spotlight.

CNN: Foot-and-mouth virus: A global dilemma

And with each cycle of growth, and each cycle of financial constraints, we endemically and serially exhaust easy and cheap mines, and then under-invest in finding and opening new ones.

FORBES: Magnetic North: The Canadian (Mining) Miracle