It may refer to the manufacturer. Search MBI and doll and you will see a search result for a company called MBI, Inc. They have been around since 1969.
Smoking during pregnancy reduces the growth and health of babies and increases the risks of a number of complications and illnesses for both the mother and baby. Babies born to women who smoke during pregnancy have a greater chance of premature birth, low birth weight, stillbirth and infant mortality.
1 Premature birth. 2  This is birth before 37 weeks of pregnancy. 3  About 7 of 10 low-birthweight babies are premature. 4  The earlier a baby is born, the lower her birthweight may be. 5  About 1 in 10 babies in the United States is born prematurely.