ССЫЛКИ

1. Human Anatomy / M. Prives, N. Lysenkov, V. Bushkovich. M. : Mir Publishers, 1989.

2. https://www.innerbody.com

3. https://www.healthline.com

4. https://www.heart.org

5. https://www.health24.com

6. https://www.nhsdirect.wales.nhs.uk