Objective To investigate the effect of maternal cigarette smoking on birth weight,head circumference birth length and iron stores in newborn to confirm the harm of smoking behavior in pregnancy,and to provide theoretical basis for improving the level of perinatal health care in China. Methods Totally 150 puerperas and their newborns were recruited.According to the WHO definition of cigarette smoking frequency,puerperas were divided into no smoking group,occasional smoking group and daily smoking group.Daily...