Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dashboard
Publications
Account settings

Search…

Primary site navigation

Search

Logged in as:

Dashboard
Publications
Account settings

Search PMC Full-Text Archive

Journal List
User Guide

As a library, NLM provides access to scientific literature. Inclusion in an NLM database does not imply endorsement of, or agreement with, the contents by NLM or the National Institutes of Health.
Learn more: PMC Disclaimer | PMC Copyright Notice

letter

. 1984 Feb 18;288(6416):569–570. doi: 10.1136/bmj.288.6416.569

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Not . . . achalasia.

K D Bardham

Find articles by K D Bardham

C C Rigby

Find articles by C C Rigby

PMC Copyright notice

PMCID: PMC1444608 PMID: 6421383

Full text

569
570
Next

569

570

Articles from British Medical Journal (Clinical research ed.) are provided here courtesy of BMJ Publishing Group

ACTIONS

View on publisher site
PDF (597.3 KB)

RESOURCES

Cite

Download .nbib .nbib
Format:

Add to Collections

Create a new collection

Add to an existing collection

Name your collection *

Choose a collection

Unable to load your collection due to an error
Please try again

Follow NCBI

NCBI on X (formerly known as Twitter) NCBI on Facebook NCBI on LinkedIn NCBI on GitHub NCBI RSS feed

Connect with NLM

NLM on X (formerly known as Twitter) NLM on Facebook NLM on YouTube

National Library of Medicine
8600 Rockville Pike
Bethesda, MD 20894

Web Policies
FOIA
HHS Vulnerability Disclosure

Help
Accessibility
Careers

NLM
NIH
HHS
USA.gov