Successful retrieval using ultrathin transnasal esophagogastroduodenoscopy of a significant amount of residual tricyclic antidepressant following serious toxicity: a case report.

Int J Emerg Med · 2013 · PMC3853774 · PMID 24148152

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may be significantno p-value reported

However, it has also been reported that there may be significant drug residue in the stomach at >1 h after drug overdosage [ 8 ].

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