Song, J. H., & Kim, S. G. Helicobacter pylori-negative Peptic Ulcer. Korean College of Helicobacter and Upper Gastrointestinal Research.
Chicago Style (17th ed.) CitationSong, Ji Hyun, and Sang Gyun Kim. Helicobacter Pylori-negative Peptic Ulcer. Korean College of Helicobacter and Upper Gastrointestinal Research.
MLA (9th ed.) CitationSong, Ji Hyun, and Sang Gyun Kim. Helicobacter Pylori-negative Peptic Ulcer. Korean College of Helicobacter and Upper Gastrointestinal Research.
Warning: These citations may not always be 100% accurate.