Samsung CAPTIVATE SGH-I897 User Manual
Page 165
 
Health and Safety Information 160
However, none of the studies can answer questions about long-
term exposures, since the average period of phone use in these 
studies was around three years.
What research is needed to decide whether RF exposure
from wireless phones poses a health risk?
A combination of laboratory studies and epidemiological studies 
of people actually using wireless phones would provide some of 
the data that are needed. Lifetime animal exposure studies could 
be completed in a few years. 
However, very large numbers of animals would be needed to 
provide reliable proof of a cancer promoting effect if one exists. 
Epidemiological studies can provide data that is directly 
applicable to human populations, but ten or more years' follow-
up may be needed to provide answers about some health effects, 
such as cancer. 
This is because the interval between the time of exposure to a 
cancer-causing agent and the time tumors develop - if they do - 
may be many, many years. The interpretation of epidemiological 
studies is hampered by difficulties in measuring actual RF 
exposure during day-to-day use of wireless phones. Many 
factors affect this measurement, such as the angle at which the 
phone is held, or which model of phone is used.
What is FDA doing to find out more about the possible
health effects of wireless phone RF?
FDA is working with the U.S. National Toxicology Program and 
with groups of investigators around the world to ensure that high 
priority animal studies are conducted to address important 
questions about the effects of exposure to radio frequency 
energy (RF). FDA has been a leading participant in the World 
Health Organization international Electromagnetic Fields (EMF) 
Project since its inception in 1996. 
An influential result of this work has been the development of a 
detailed agenda of research needs that has driven the 
establishment of new research programs around the world. The 
Project has also helped develop a series of public information 
documents on EMF issues.
FDA and Cellular Telecommunications & Internet Association 
(CTIA) have a formal Cooperative Research and Development 
Agreement (CRADA) to do research on wireless phone safety. 
FDA provides the scientific oversight, obtaining input from 
experts in government, industry, and academic organizations. 
CTIA-funded research is conducted through contracts to 
independent investigators. The initial research will include both 
laboratory studies and studies of wireless phone users. The 
CRADA will also include a broad assessment of additional