Hutajulu, S H 2012, ' Clinical, Virological and Host Epigenetic Markers for Early Identification of Nasopharyngeal Carcinoma in High Risk Populations in Indonesia ', PhD, Vrije Universiteit Amsterdam . Hutajulu, S H 2012, ' Clinical, Virological and Host Epigenetic Markers for Early Identification of Nasopharyngeal Carcinoma in High Risk Populations in Indonesia ', Doctor of Philosophy, VU Vrije Universiteit .