An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Coghlin J, Gann PH, Hammond SK, Skipper PL, Taghizadeh K, Paul M, Tannenbaum SR.Coghlin J, et al. Among authors: gann ph.J Natl Cancer Inst. 1991 Feb 20;83(4):274-80. doi: 10.1093/jnci/83.4.274.J Natl Cancer Inst. 1991.PMID: 1994056
Hammond SK, Coghlin J, Gann PH, Paul M, Taghizadeh K, Skipper PL, Tannenbaum SR.Hammond SK, et al. Among authors: gann ph.J Natl Cancer Inst. 1993 Mar 17;85(6):474-8. doi: 10.1093/jnci/85.6.474.J Natl Cancer Inst. 1993.PMID: 8445675