MAP20120033757 Lankatilake, Kantha Exposure to polychlorinated biphenyls (PCBs) among welders in Sri Lanka / Kantha Lankatilake, Dulani Samaranayake, Kasun Piyathunga En: International journal of occupational and environmental health. - Massachusetts : Hamilton Hardy Publishing, Inc., 2010- = ISSN 1077-3525. - 02/04/2012 Volumen 18 Número 2 - abril - junio 2012 I. Título.