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DISEASE | English meaning - Cambridge Dictionary
Infectious disease | Definition, Types, & Causes | Britannica
Human disease - Causes, Pathogens, Symptoms | Britannica
Diseases - World Health Organization (WHO)
Liver disease - NHS
What is disease? And why it’s a healthy question | The BMJ
What causes diseases? Why the answer is complicated, and …
DISEASE | definition in the Cambridge English Dictionary
Disease Definition & Meaning | Britannica Dictionary
Common diseases in humans (article) | Khan Academy