Original sentence: , the Animal Welfare Act places no restriction on the kinds of experiments that can be performed on animals; it only concerns conditions in which animal are kept and cared for.However, in the U
Edited sentence: , the Animal Welfare Act explicitly requires that any procedure that may cause pain utilize "tranquilizers, analgesics, and anesthetics" (Sec.2143,a,3,B.In the U.iii) unless absolutely necessary <"">