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U.S. FDA

•World Health Organization (WHO) International Commission on Non-Ionizing Radiation Protection (select Qs & As): http://www.who.int/emf

•United Kingdom, National Radio- logical Protection Board: http://www.nrpb.org.uk

•Cellular Telecommunications In- dustry Association (CTIA): http://www.wow-com.com

•U.S. Food and Drug Administra- tion (FDA) Center for devices and Radiological Health: http://www.fda.gov/cdhr/ consumer/

1Muscat et al. Epidemiological Study of Cel- lular Telephone Use and Malignant Brain Tumors. In: State of the Science Sympo- sium; 1999 June 20; Long Beach, California.

2Tice et al. Tests of mobile phone signals for activity in genotoxicity and other laboratory assays. In: Annual Meeting of the Environ- mental Mutagen Society; March 29, 1999, Washington, DC; and personal communica- tion, unpublished results.

3Preece, AW, Iwi, G, Davies-Smith, A, Wesnes, K, Butler, S, Lim, E, and Varey, A. Effect of a 915- MHz simulated mobile phone signal on cognitive function in man. Int. J. Radiat. Biol., April 8, 1999.

4Hardell, L, Nasman, A, Pahlson, A, Hallquist, A and Mild, KH. Use of cellular telephones and the risk for brain tumors; a case-control study. Int. J. Oncol, 15: 113- 116, 1999.