Assertion: short chain nucleic acid | /r/CapableOf | circulate in body fluids
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text: Nevertheless, for certain applications, isolation of short-chain nucleic acids or concentrating them over long-chain nucleic acids is desirable, for example for the isolation and detection of short-chain fragmented nucleic acids circulating in body fluids, such as the so called cell-free DNA (cfDNA) found in blood of cancer patients or during pregnancy.