Heterogeneous Helicobacter pylori isolates from members of a family with a history of peptic ulcer disease+ e) t7 c7 a* q$ n5 q4 H w. }
A van der Ende, EA Rauws, M Feller, CJ Mulder, GN Tytgat, J Dankert 3 c) l% ?+ q' d6 M2 o3 o% ~" n2 s" C/ I9 j' K
Department of Medical Microbiology, University of Amsterdam, Netherlands + d$ k" E5 ~6 U. T! ~5 q