| http://www.w3.org/ns/prov#value | - A sample can be a liquid such as urine, saliva, cerebrospinal fluid, blood, serum and the like, or a solid or semi-solid such as tissues, feces, and the like, or, alternatively, a solid tissue such as those commonly used in histological diagnosis. [0033] Another labeling technique which may result in greater sensitivity consists of coupling the antibodies to low molecular weight haptens.
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