(1999). Helicobacter pylori infection in children. College of Family Physicians of Canada.
शिकागो स्टाइल उद्धरणHelicobacter Pylori Infection in Children. College of Family Physicians of Canada, 1999.
एमएलए उद्धरणHelicobacter Pylori Infection in Children. College of Family Physicians of Canada, 1999.
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