31.   These studies are the first to link the gene responsible for producing the enzyme with the disease, Beutler said.

32.   Most people born with the syndrome die young because their immune system fials to produce enzymes that fight bacteria and viruses.

v. + enzyme >>共 83
block 12.05%
produce 10.42%
inhibit 7.82%
use 6.84%
contain 4.89%
lack 3.26%
find 2.93%
attack 2.61%
release 2.61%
target 2.28%
produce + n. >>共 1722
result 3.89%
evidence 1.86%
weapon 1.01%
agreement 0.93%
show 0.90%
goods 0.89%
electricity 0.86%
product 0.85%
film 0.82%
document 0.79%
enzyme 0.16%
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