[Epidemiological observations on Ancylostoma duodenale, Necator americanus and Trichostrongylus orientalis infestations in Niigata Prefecture, Japan].
D000722:Ancylostoma; D000818:Animals; D003141:Communicable Diseases; D006801:Humans; D007564:Japan; D017221:Necator americanus; D009332:Necatoriasis; D009349:Nematode Infections / Q000453:epidemiology*; D010272:Parasitic Diseases; D014254:Trichostrongylus
NEMATODE INFECTIONS/epidemiology