One type of chronic dermatitis that has acute phases is _______________. Its causes are mostly unknown, but it is thought to be a type of allergy or the result of an often unknown underlying inflammatory condition. 

Until modern times, MOST medical care took place:

A) in specialty clinics. B) in hospitals. C) outside of hospitals. D) at funeral homes.

A screen pneumotachograph is:

a. built with metal struts. c. bidirectional and very accurate. b. expensive and non-disposable. d. heated to prevent condensation.