| genotypes of hepatitis b virus identified in patients tested prior to endoscopy from a teaching hospital in the central province of sri lanka. | the present study was carried out to identify the hepatitis b virus (hbv) genotypes in six patients attending the surgical clinic who were positive for hepatitis b surface antigen. dna was extracted from the serum of patients and subjected to a modified nested pcr to detect a 585 bp region within the s gene of the hbv genome. positive pcr products were purified and sequenced via a cycle sequencing method. the sequence data were analyzed with reference sequences in the hepseq database to identify ... | 2015 | 26132186 |