# PubMed record PMID 42957

> PeptideScanner retained PubMed bibliographic metadata for PMID 42957 at 2026-07-30T23:04:35.967Z. PubMed recorded a metadata revision date of 2003-11-14 and an Entrez history date of 1979-11-01. PeptideScanner associated this retained record with the identity slug glucagon. These dates describe PubMed metadata history, not the article's original publication date.

- Evidence object: `story:pubmed-pmid-42957-glucagon:v1`
- Evidence domain: Literature metadata
- Date in source: 2003-11-14
- Source checked: 2026-07-30
- Published by PeptideScanner: 2026-08-10
- Story landing page: https://peptidescanner.com/stories/pubmed-pmid-42957-glucagon/
- JSON record: https://peptidescanner.com/evidence/v1/objects/pubmed-pmid-42957-glucagon-v1.json
- Content SHA-256: `445e8fe453070a2f0ae556aa01b16ff37aa6b8e189f78db9f5d7b2da6498d080`

## Claims and source pins

### Headline

PubMed record PMID 42957 ([`pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2`](#source-pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2))

### Summary

PeptideScanner retained PubMed bibliographic metadata for PMID 42957 at 2026-07-30T23:04:35.967Z. PubMed recorded a metadata revision date of 2003-11-14 and an Entrez history date of 1979-11-01. PeptideScanner associated this retained record with the identity slug glucagon. These dates describe PubMed metadata history, not the article's original publication date. ([`pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2`](#source-pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2))

### Paragraph 1

PeptideScanner retained PubMed bibliographic metadata for PMID 42957 at 2026-07-30T23:04:35.967Z. PubMed recorded a metadata revision date of 2003-11-14 and an Entrez history date of 1979-11-01. PeptideScanner associated this retained record with the identity slug glucagon. These dates describe PubMed metadata history, not the article's original publication date. ([`pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2`](#source-pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2))

### Paragraph 2

This page reports retained PubMed bibliographic metadata. It does not summarize the article, establish the article's publication date, or assert safety, efficacy, or scientific truth. ([`pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2`](#source-pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2))

## Sources

<a id="source-pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2"></a>
- **PubMed record PMID 42957 · retained source version 1:2003-11-14:current:b6a0880166d2a6a40ecebbe7f9d24700dde782f42472cb43da19ce6e3d00c936** — PubMed; class A. [Open source](https://pubmed.ncbi.nlm.nih.gov/42957/) (`pubmed-observation-pmid-42957-2003-11-14-b6a0880166d2`)

## Correction lineage

No correction is recorded for this version.

## Reporting boundaries and unknowns

PeptideScanner reproduces bounded bibliographic metadata attributed to PubMed. It does not summarize or endorse the article's findings.

- Sources outside the selected public PeptideScanner bundle may exist and are not represented by this object.
- This object does not determine whether cited records agree, corroborate one another, or establish scientific truth.
- This object does not determine safety, efficacy, causality, or suitability for any person.

Methodology: https://peptidescanner.com/methodology/
Medical disclaimer: https://peptidescanner.com/medical-disclaimer/

## Suggested citation

PeptideScanner. "PubMed record PMID 42957." Version 1, published 2026-08-10. https://peptidescanner.com/evidence/v1/objects/pubmed-pmid-42957-glucagon-v1.json SHA-256: 445e8fe453070a2f0ae556aa01b16ff37aa6b8e189f78db9f5d7b2da6498d080.