title: Letter: Giardiasis in Russia.
mesh_terms: D005873:Giardiasis / Q000188:drug therapy / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D006801:Humans; D008297:Male; D011796:Quinacrine / Q000627:therapeutic use; D014195:Travel; D014586:USSR; D014481:United States; D014876:Water Pollution; D014881:Water Supply
chemical_list: D011796:Quinacrine