blood
chemical
clinic
cortex
diagnosis
diagnostic
disease
disorder
doctor
exam
eye
fatigue
health
hormone
hospital
idea
lab
laboratory
letter
man
marker
medical
medicine
message
nerve
note
ophthalmologist
ophthalmology
patient
produce
reduce
research
retina
retirement
science
scientific
stethoscope
stress
system
term
test
text
therapy
tired
treatment
typography
vision
word
writing
written