Rankings
Publications
Search Publications
Cited-by Search
Sources
Publishers
Scholars
Scholars
Top Cited Scholars
Organizations
About
Scilit
About Us
Advisory Board
Data Sources
Career
Support / Contact
User Guide
Publisher User
Search Function
Rankings Function
API Resource
Scilit Knowledge
Metrics
Scilit Recognitions
Publications Classification
Media
News
Blog
Login
Register
Home
Publications
ANNOTATIONS
Home
Publications
ANNOTATIONS
ANNOTATIONS
Citation Alert
Add to Library
Cite
Download
Share
Download
Download PDF
Download
Publisher website
Google Scholar
22 September 1951
journal article
Published by
BMJ
in
BMJ
Vol. 2
(4733)
,
723-726
DOI:
10.1136/bmj.2.4733.723
Abstract
No abstract available
Cited
Cited by 1 article
Scroll to top