Merck Sharp & Dohme Corp.
Merck Manual: Pneumonia
Visit this site from The Merck Manual for information on pneumonia. Read about the causes, how its diagnosed, symptoms, how it can be prevented, and treatment.
WebMD
Web Md: What Is Pneumonia?
This article from WebMD provides great information on the lung infection known as pneumonia. Includes a brief but factual topic overview, information on the causes, symptoms, diagnosis, treatment, prevention, and medications involved.