Full text
PDF![1200](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb00/2035809/60de4a7253d4/brmedj03182-0016.png)
![1201](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb00/2035809/96e7142e375c/brmedj03182-0017.png)
![1202](https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cb00/2035809/f4e906b55e02/brmedj03182-0018.png)
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- ISAACS A. Recent evolution and spread of strains of influenza-A virus. Lancet. 1956 Nov 10;271(6950):960–961. doi: 10.1016/s0140-6736(56)90319-1. [DOI] [PubMed] [Google Scholar]