3. https://statistics.blf.org.uk/lung-disease-uk-big-picture#hospital-admissions-uk
4. https://www.nice.org.uk/guidance/cg191/chapter/Introduction
5. https://www.nice.org.uk/guidance/cg191/chapter/1-Recommendations#community-acquired-pneumonia-3
6. https://www.brit-thoracic.org.uk/quality-improvement/guidelines/pneumonia-adults/