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.
Bar-Ad V, Leiby B, Witek M, Xiao Y, Cui Y, Dai Y, Cao J, Axelrod R, Campling B, Both S, Werner-Wasik M.Bar-Ad V, et al. Among authors: witek m.Am J Clin Oncol. 2014 Oct;37(5):433-7. doi: 10.1097/COC.0b013e31827de7a2.Am J Clin Oncol. 2014.PMID: 23388558
Witek M, Vahknenko Y, Siglin J, Harrison A, Xiao Y, Lui H, Andrews D, Shi W.Witek M, et al.Int J Med Phys Clin Eng Radiat Oncol. 2014 Aug;3(3):176-182. doi: 10.4236/ijmpcero.2014.33023.Int J Med Phys Clin Eng Radiat Oncol. 2014.PMID: 29963335Free PMC article.