BetainePepsin ALipotropic AgentsPepsinogensSarcosineCholineBetaine-Homocysteine S-MethyltransferaseGastric JuicePepstatinsGuanidineTrimethylsilyl CompoundsOsmotic PressureWater-Electrolyte BalanceGuanidinesProlineSodium ChlorideRespiratory AspirationHydrogen-Ion ConcentrationOsmolar ConcentrationProtein DenaturationPentagastrinHomocysteineAmino AcidsPepsinogen AKineticsMethionineGastric MucosaHomocystinuriaTabletsAmino Acid SequencePancreatinSwineDose-Response Relationship, DrugNorleucineChymosinUreaMolecular Sequence DataAmino Acids, DiaminoHydrochloric Acid