The demonstration of porphyrins in gastric juice by fluorescence microscopy.
D000328:Adult; D000368:Aged; D005260:Female; D005750:Gastric Juice / Q000032:analysis*; D006801:Humans; D008297:Male; D008856:Microscopy, Fluorescence; D008875:Middle Aged; D011164:Porphyrias; D011166:Porphyrins / Q000302:isolation & purification*
D011166:Porphyrins