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Keywords: markers
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Clin Sci (Lond) (1983) 64 (6): 629–635.
Published: 01 June 1983
...Sheila Bingham; J. H. Cummings 1. At the present time there is no method whereby the completeness of 24 h urine collections can be accurately assessed when clinical studies are undertaken. The suitability of 4-aminobenzoic acid (PAB) given with meals as a marker for completeness of urine...