Customize your JAMA Network experience by selecting one or more topics from the list below.
This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
British Medical Journal, London. JAMA. 1967;199(13):216–217. doi:10.1001/jama.1967.03120130124047
Coronavirus Resource Center
Create a personal account or sign in to: