Americandoctorssaythatmotherswhosmokecigarettesbeforeth...
问题详情：Americandoctorssaythatmotherswhosmokecigarettesbeforetheirbabiesarebornmayslowthegrowthoftheirbabies’lungs.Theysaythatreducedlunggrowthcouldcausethebabiestosufferbreathingproblemsandlungdisea...