title: A seasonal variability in the infection of an isolated population of Microtus arvalis (Pallas, 1778) with index species of nematodes.
mesh_terms: D000367:Age Factors; D000818:Animals; D009349:Nematode Infections / Q000662:veterinary*; D012376:Rodent Diseases; D012377:Rodentia; D012621:Seasons