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.
[5] Children born to mothers who smoked while pregnant, and possibly children whose grandmothers smoked while pregnant, have a higher risk of developing childhood asthma. [6] , [7] , [8] In addition, maternal smoking during pregnancy is a risk factor for early childhood obesity.[9].Figure 2). There are sizeable variations in smoking rates among subgroups of Hispanic women. Among births to Hispanics in 2013, the share where the mother smoked during pregnancy ranged from less than one percent among births to Central and South American mothers, to seven percent among births to Puerto Rican mothers.