Correction

This article [1] was unintentionally published twice in this journal, by the same authors. The following should be considered the version of record and used for citation purposes: "Soltani et al., Does this patient have Pheochromocytoma? a systematic review of clinical signs and symptoms, Journal of Diabetes & Metabolic Disorders (2016) 15:6, 10.1186/s40200-016-0226-x". The duplicate article [2] "Pourian et al., Does this patient have Pheochromocytoma? A systematic review of clinical signs and symptoms, Journal of Diabetes & Metabolic Disorders (2016) 15:11, 10.1186/s40200-016-0230-1" is to be ignored. Editor-in-Chief Prof Bagher Larijani apologizes to the readers of the journal for not detecting the duplication during the publication process.”