The last number is called a check digit which enables the scanner to determine if the barcode was scanned correctly or not. A linear barcode typically holds any type of text information. In contrast, a 2D barcode is more complex and can include more information in the code: price, quantity, web address or image.
April 2014, pp. Breastfeeding is negatively affected by prenatal depression and reduces postpartum depression. This prospective cohort study explored the effects of prenatal and postpartum depression on breastfeeding and the effect of breastfeeding on postpartum depression.
Postpartum depression is moderate to severe depression in a woman after she has given birth. It may occur soon after delivery or up to a year later. Most of the time, it occurs within the first 3 months after delivery. The exact causes of postpartum depression are unknown.