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Letter
Diagnostic accuracy of the gamma-glutamyl transpeptidase to platelet ratio (GPR) using transient elastography as a reference

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Footnotes

  • Response to ‘The Gamma-glutamyl transpeptidase to Platelet Ratio (GPR) shows poor correlation with transient elastography measurements of liver fibrosis in HIV-positive patients with chronic hepatitis B in West Africa’ by Stockdale et al.

  • Contributors ML drafted the paper. YS was in charge of the statistical analysis. VM, ML and YS developed the GPR. MT is the chief investigator of the PROLIFICA programme where the patients are derived from. All the authors read and approved the content of this letter.

  • Competing interests None declared.

  • Ethics approval Guide on Approval Procedures Introduction Research projects that involve participation of human participants or use of data or samples obtained from humans must have approval by an ethics committee before their commencement. This is in keeping with International Ethical Standards. The Gambia Government/MRC Joint Ethics Committee (EC).

  • Provenance and peer review Not commissioned; internally peer reviewed.