Increased urinary riboflavin excretion resulting from boric acid ingestion.


The urinary excretion of riboflavin (vitamin B2) was determined in 14 patients, both children and adults, after the ingestion of boric acid. These patients reported to the New York City Poison Control Center during a 2 1/2 year period. Riboflavin was determined by a modification of a previously described method which is based upon competitive protein… (More)


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