Syversen, U [Chromogranin A in blood--a useful tumor marker]. [electronic resource] - Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke Oct 1997 - 3810-1 p. digital Publication Type: English Abstract; Journal Article; Review ISSN: 0029-2001 Subjects--Topical Terms: Biomarkers, Tumor--analysisChromogranins--bloodHumansNeuroendocrine Tumors--blood