| http://www.w3.org/ns/prov#value | - male workers employed in the Karadeniz Eregli iron and steel plant in the city of Eregli possibly occupationally exposed to polycyclic aromatic hydrocarbons (PAHs), and the control group consisting of 50 males from the same plant employed in packaging and other duties in which they were, presumably, not exposed to PAH. All the exposed workers used working clothes, helmets, shoes, gloves and masks
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