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    • Relationship of Roadside Worker’s Characteristic with Blood Lead Level 

      Hasan, Wirsal; Matondang, Rahim; Syahrin, Alvi; Wahyuni, Chatarina Umbul; Ashar, Taufik (Universitas Sumatera Utara, 2016)
      Lead can insert into the body through the human digestive tract with food and drinks as well as through the respiratory tract into the lungs and blood vessels. Paddle rickshaw puller, motorized rickshaw pullers, traffic ...