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Key Points Chronic rhinosinusitis (CRS) in children has a negative effect on quality of life. Distinction between adenoiditis and CRS in children is difficult because of similar symptoms and often similar findings on physical examination. In children with chronic respiratory…
Key Points The immune system protects the organism from infectious microbes and avoids responses that produce damage to host tissues. The immune system is divided into the innate and adaptive systems. The adaptive immune system recognizes different specific antigens, adapts…