liver-worm
131Henri Paul — Infobox Person name = Henri Paul caption = birth date = birth date|1956|7|3 birth place = Lorient, Brittany, France education = Baccalaureat in mathematics and science at the Lyon St. Louis; prizes in classical piano, Interests: Flying held a… …
132Hygiene hypothesis — In medicine, the Hygiene Hypothesis states that a lack of early childhood exposure to infectious agents, symbiotic microorganisms (e.g., gut flora or probiotics), and parasites increases susceptibility to allergic diseases by suppressing natural… …
