表皮
acne
allergic
allergy
bacteria
cartoon
cell
cells
condition
defence
dendritic
diagnosis
diagram
disease
epithelial
epithelium
health
healthy
histamine
human
iga
ige
illness
illustration
immune
immunity
inflammation
inflammatory
invasion
layer
lymphocyte
medical
medicine
melanocyte
normal
organ
pimple
protective
regulation
regulatory
reproduce
sickness
skin
spread
system
tcell
thelper
toxin
treatment
virus
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