Fig. 1From: Effect of ambient air pollution on premature SGA in Changzhou city, 2013–2016: a retrospective studyThe median concentrations of air pollutants and incidences of premature SGA from 2013 to 2016. SGA: small for gestational age, PM2.5: particular matter 2.5, NO2: nitrogen dioxide, SO2: sulphur dioxideBack to article page