There are also many other information sources that show that exposure to air pollution in cities affects the weight of the baby and often premature, therefore, need to consider pregnant women a priority risk groups as well.
It also contains many other sources shows that exposure to air pollution in cities affects the weight of the baby and often premature, therefore, to consider pregnant women as a group. risks that need attention as well.
There are also many other data sources show that exposure to air pollution in major cities around the effect of infant and often have preterm delivery. Therefore, need to consider to pregnant women risk groups to focus as well.