title: The Microbial ecology of the upper small bowel.
mesh_terms: D000293:Adolescent; D000328:Adult; D001431:Bacteriological Techniques; D006801:Humans; D007421:Intestine, Small / Q000382:microbiology*; D007441:Intubation, Gastrointestinal; D007778:Lactobacillus / Q000302:isolation & purification; D008297:Male; D013291:Streptococcus / Q000302:isolation & purification; D014678:Veillonella / Q000302:isolation & purification; D015003:Yeasts / Q000302:isolation & purification