An Italian program of External Quality Control for chromogranin A (CgA) assay: performance evaluation of CgA determination.

@article{Verderio2007AnIP,
  title={An Italian program of External Quality Control for chromogranin A (CgA) assay: performance evaluation of CgA determination.},
  author={Paolo Verderio and Ruggero Dittadi and Ettore Marubini and Sara Pizzamiglio and Massimo Gion and Leandro De Apollonia and Angelo Virgilio Paradiso},
  journal={Clinical chemistry and laboratory medicine},
  year={2007},
  volume={45 9},
  pages={1244-50}
}
BACKGROUND Chromogranin A (CgA) is an acidic glycoprotein produced by many neuroendocrine cells and neurons. Currently, two different methods for assaying CgA, immunoradiometric assay (IRMA) and enzyme-linked immunosorbent assay (ELISA), are widely used in routine practice. Within the framework of a Ministry of Health project, an External Quality Control program was developed to investigate the state of the art of CgA determination in Italy and to monitor the performance of laboratories… CONTINUE READING

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