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.
Göbel U, Calaminus G, Schneider DT, Schmidt P, Haas RJ; MAKEI and MAHO Study Groups of the German Society of Pediatric Oncology and Hematology, and the SIOP CNS GCT Study Group.Göbel U, et al.Onkologie. 2002 Feb;25(1):14-22. doi: 10.1159/000055197.Onkologie. 2002.PMID: 11893878Free article.Review.