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D19 Hematologic, Gastrointestinal, and Renal Agents D006404 +
D19.316 Gastrointestinal Agents D005765 +
D19.316.203 Anti-Ulcer Agents D000897 +
D19.316.203.059 Antacids D000863
D27 Chemical Actions and Uses D020164 +
D27.505 Pharmacologic Actions D020228 +
D27.505.954 Therapeutic Uses D045506 +
D27.505.954.522 Hematologic, Gastrointestinal, and Renal Agents D006404 +
D27.505.954.522.316 Gastrointestinal Agents D005765 +
D27.505.954.522.316.203 Anti-Ulcer Agents D000897 +
D27.505.954.522.316.203.059 Antacids D000863