PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9060087-2 1997 Addition to urine of a preservative solution containing benzamidinium chloride, EDTA, tris(hydroxymethyl)-aminomethane and azide prevented the decreases of the concentration values for protein HC and IgG but not for alpha 1-antitrypsin. Azides 123-128 alpha-1-microglobulin/bikunin precursor Homo sapiens 185-195