The connection led Dr. Marsh to conclude that &quot;a low-level native strain of BSE exists in the United States, but was going undetected.
(Dr. Marsh; to conclude; that) (Dr. Marsh; to quot; ) (a low-level native strain of BSE; exists; L:in the United States) Context(a low - level native strain of BSE exists,List([52, 91))):(The connection; led; Dr. Marsh; to conclude that &quot)
a low - level native strain of BSE exists,List([52, 91))
Dr. Marsh Dr. Marsh a low-level native strain of BSE The connection
to conclude to quot exists led
that
L:in the United States
Dr. Marsh to conclude that &quot