01006naa a2200241 a 450000100080000000500110000800800410001902400440006010000200010424501350012426000090025952002670026865000310053565000170056665000170058365000160060065000190061665000180063565000100065365000180066365300140068177300690069515219342025-06-17       1948    bl uuuu     u00u1 u    #d7 a10.1111/j.1751-0813.1948.tb01569.x2DOI1 aGORDON, H. McL.  aThe epidemiology of parasitic diseases, with special reference to studies with nematode parasites of sheep.h[electronic resource]  c1948  aA parasite's existence is usually an elaborate compromise between extracting sufficiente nourishment to maintain and propagate itself, and not impairing too much the vitality or reducing the numbers of its host, which is providing it with a home and a free ride.  aAnimal parasitic nematodes  aEpidemiology  aParasitology  aParasitoses  aSheep diseases  aEpidemiologia  aOvino  aParasitologia  aNematodeo  tAustralian Veterinary Journalgv. 24, n. 2, p. 17-45, Feb. 1948.