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.
Chessells JM, Harrison G, Richards SM, Gibson BE, Bailey CC, Hill FG, Hann IM; Medical Research Council Working Party On Childhood Leukaemia.Chessells JM, et al. Among authors: bailey cc.Br J Haematol. 2002 Aug;118(2):445-55. doi: 10.1046/j.1365-2141.2002.03647.x.Br J Haematol. 2002.PMID: 12139731Free article.