| http://www.w3.org/ns/prov#value | - Typically, the sample is an aqueous solution or biological fluid as described in more detail below. [0056] The fluid sample can be derived from any source, such as a physiological fluid, including blood, serum, plasma, saliva, sputum, ocular lens fluid, sweat, urine, milk, ascites fluid, mucous, synovial fluid, peritoneal fluid, transdermal exudates, pharyngeal exudates, bronchoalveolar lavage, tr
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