C. Ariyasriwatana, S. Chaithongwongwatthana, B. Kanchanatawan, and N. Taechakraichana, “Correlation of Thai Edinburgh Postnatal Depression Scale Scores between Thai Women During Early and 6-week Postpartum Periods”, Thai J Obstet Gynaecol, vol. 18, no. 1, pp. 19–25, May 2012.