These are the most frequently used words in this book.
1992
1993
1994
1995
1996
1997
1998
activity
age
al
alcohol
although
among
associated
association
between
breast
cancer
care
cases
cause
changes
clinical
compared
control
data
differences
dis
disease
disorders
during
effects
estrogen
et
evidence
exposure
factors
family
female
first
found
gender
group
health
high
higher
hormone
however
human
incidence
increase
increased
infection
less
levels
likely
may
med
men
mortality
national
new
number
older
pain
patients
per
physical
population
pregnancy
prevalence
rates
re
report
reported
research
results
risk
section
sex
smoking
social
states
study
symptoms
syndrome
therapy
time
tion
treatment
trial
two
type
united
use
used
weight
women
work
years