Doulas: Birth & Postpartum
The Effects of Social Support on Maternal Anxiety and Depression After Stillbirth
Mothers Without Companionship During Childbirth: An Analysis Within the Millennium Cohort Study
Partner support in the childbearing period-A follow up study.
Swedish Women's Experiences of Doula Support During Childbirth
Continuous support for women during childbirth ~ 16 studies and 13,391 women
DONA International Position Paper on Birth Doulas~ includes several international studies.
Women's Perceptions of Their Doula Support
Female relatives or friends trained as labor doulas: outcomes at 6-8 weeks postpartum
Classic References:
The obstetrical and postpartum benefits of continuous support during childbirth
The doula: an essential ingredient of childbirth rediscovered
A comparison of intermittent and continuous support during labor: a meta-analysis
A randomized control trial of continuous support in labor by a lay doula
Social Support by Doulas During Labor and the Early Postpartum Period