depression - SERP Analysis

https://www.mayoclinic.org/diseases-conditions/depression/symptoms-causes/syc-20356007

https://www.samhsa.gov/

https://www.who.int/news-room/fact-sheets/detail/depression

https://en.wikipedia.org/wiki/Depression_(mood)

https://www.nimh.nih.gov/health/topics/depression

https://medlineplus.gov/depression.html

https://www.psychiatry.org/patients-families/depression/what-is-depression

https://www.nhs.uk/mental-health/conditions/depression-in-adults/overview/

https://my.clevelandclinic.org/health/diseases/9290-depression

https://www.cdc.gov/tobacco/campaign/tips/diseases/depression-anxiety.html