[Experiences with gastric acidity examination with gastrotest and without the use of a sound].
D002110:Caffeine / Q000494:pharmacology*; D004063:Digestion; D005750:Gastric Juice / Q000737:chemistry*; D007475:Ion Exchange Resins / Q000494:pharmacology*; D013016:Sound
D007475:Ion Exchange Resins; D002110:Caffeine
CAFFEINE/pharmacology; GASTRIC JUICE/chemistry; ION EXCHANGE RESINS/pharmacology