Newborns' cord blood plasma cotinine concentrations are similar to that of their delivering smoking mothers. Berlin, I.; Heilbronner, C.; Georgieu, S.; Meier, C.; Spreux-Varoquaux, O.. Drug Alcohol Depend. 2010; 250-2: p.250-2. doi:10.1016/j.drugalcdep.2009.10.008Article