Hydrochloric AcidHistory, 19th CenturyHistory, 17th CenturyHistory, 18th CenturyHistory, 20th CenturyHistory, 15th CenturyHistory, 16th CenturyHistory, MedievalTh2 CellsTh1 CellsPneumonia, AspirationNitric AcidHistory, 21st CenturyGastric JuiceDecalcification TechniqueTrifluoroacetic AcidCountercurrent DistributionHistory, AncientTh17 CellsEsophagusHydrogen-Ion ConcentrationFamous PersonsStomachAcidsFluoroacetatesAchlorhydriaParietal Cells, GastricGastric AcidSulfuric AcidsMedicine in ArtGastric FistulaGastric MucosaSodium HydroxideAlkalosisPentagastrinPepsin AAppendixHistoryAcidosisDuodenumPaintingsPersiaSodium ChlorideLeper ColoniesSpectrophotometry, AtomicStomach UlcerHistory of MedicineSecretinBicarbonatesCivilizationNobel PrizePaleopathologyEmbryologyMedicine in Literature