title: Sex ratio at birth and exposure to petrochemicals.
authors.forename: W H
authors.initials: WH
authors.lastname: James
mesh_terms: D004785:Environmental Pollutants / Q000009:adverse effects*; D006801:Humans; D007492:Iran; D010578:Petroleum; D012744:Sex Ratio; D013624:Taiwan
chemical_list: D004785:Environmental Pollutants; D010578:Petroleum