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Nilsson, Hans-Olof, Jalal Taneera, Maria Castedal, Elisabeth Glatz, Rolf Olsson, and Torkel Wadström. "Identification of Helicobacter Pylori and Other Helicobacter Species By PCR, Hybridization, and Partial DNA Sequencing in Human Liver Samples From Patients With Primary Sclerosing Cholangitis or Primary Biliary Cirrhosis." J Clin Microbiol 2000.

Nilsson, Hans-Olof, et al. "Identification of Helicobacter Pylori and Other Helicobacter Species By PCR, Hybridization, and Partial DNA Sequencing in Human Liver Samples From Patients With Primary Sclerosing Cholangitis or Primary Biliary Cirrhosis." J Clin Microbiol 2000.