title: Tobacco smoking and sex ratios in the United States.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D012744:Sex Ratio; D012907:Smoking / Q000150:complications*; D014481:United States