Dear Editor, We read with interest the article ‘‘Selective Parathyroid Hormone Venous Sampling in Patients with Persistent or Recurrent Primary Hyperparathyroidism and Negative, Equivocal or Discordant Noninvasive Imaging’’ by Sun… Click to show full abstract
Dear Editor, We read with interest the article ‘‘Selective Parathyroid Hormone Venous Sampling in Patients with Persistent or Recurrent Primary Hyperparathyroidism and Negative, Equivocal or Discordant Noninvasive Imaging’’ by Sun et al. [1]. We would like to congratulate the authors on such an exhaustive research and thorough analysis. However, we would like to have some clarification on the following points.
               
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