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.
Fopp M, Fey MF, Bacchi M, Cavalli F, Gmuer J, Jacky E, Schmid L, Tichelli A, Tobler A, Tschopp L, Von Fliedner V, Gratwohl A.Fopp M, et al. Among authors: tobler a.Ann Oncol. 1997 Mar;8(3):251-7. doi: 10.1023/a:1008267904952.Ann Oncol. 1997.PMID: 9137794Free article.Clinical Trial.
Betticher DC, Fey MF, von Rohr A, Tobler A, Jenzer H, Gratwohl A, Lohri A, Pugin P, Hess U, Pagani O, et al.Betticher DC, et al. Among authors: tobler a.Ann Oncol. 1994 Jan;5(1):57-64. doi: 10.1093/oxfordjournals.annonc.a058693.Ann Oncol. 1994.PMID: 7909685Free article.Clinical Trial.