Fig. 3From: Emergence of amoxicillin resistance and identification of novel mutations of the pbp1A gene in Helicobacter pylori in VietnamPhylogenetic tree of 85 sequences of the pbp1A gene obtained in this study. Scale bars indicate the numbers of nucleotide substitutions per site. Red nodes/tips represent pbp1A nucleotide sequences from the clinical specimens in which H. pylori isolates showed resistance to amoxicillinBack to article page