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.
Kritz A, Crown JP, Motzer RJ, Reich LM, Heller G, Moore MP, Hamilton N, Yao TJ, Heelan RT, Schneider JG, et al.Kritz A, et al. Among authors: motzer rj.Cancer. 1993 Apr 15;71(8):2515-21. doi: 10.1002/1097-0142(19930415)71:8<2515::aid-cncr2820710814>3.0.co;2-2.Cancer. 1993.PMID: 8095854Clinical Trial.