Greco, F., A. Noto, M. Palermo, D. Perugini, O. Savino, R. Tenuta, and C. Giraldi. “PATTERN BIOCHIMICI, SIEROIMMUNOLOGICI E VIROLOGICI IN 15 SOGGETTI HDV POSITIVI”. Microbiologia Medica 21, no. 3 (September 30, 2006). Accessed May 15, 2021. https://www.pagepressjournals.org/index.php/mm/article/view/3235.