Colonization with selected antibiotic resistant bacteria among a cohort of Sri Lankan university students oleh Thilini Munasinghe, Gihani Vidanapathirana, Shahlina Kuthubdeen, Asela Ekanayake, Sacheera Angulmaduwa, Kunchana De Silva, Susan Subhasinghe, Ruwani Kalupahana, Veranja Liyanapathirana, Margaret Ip