Sources

Primary Source:

OpenStax – https://openstax.org/

Palomar Community College – https://www2.palomar.edu/

Coastline Community College – https://www.coastline.edu/index.php

Campbell Biology (Pearson) – https://www.pearson.com

Palomar Health – https://www.palomarhealth.org/

UC San Diego Health – https://health.ucsd.edu/Pages/default.aspx


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