https://www.nct.org.uk/life-parent/how-you-might-be-feeling/baby-blues-what-expect

https://www.webmd.com/depression/guide/postpartum-depression#2

https://www.nhs.uk/conditions/post-natal-depression/

https://www.who.int/mental_health/prevention/suicide/lit_review_postpartum_depression.pdf