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.
This period is usually considered to be 6 weeks in duration. By 6 weeks after delivery, most of the changes of pregnancy, labor, and delivery have resolved and the body has reverted to the nonpregnant state. An overview of the relevant anatomy and physiology in the postpartum period follows.